US2008161325A1PendingUtilityA1

1, 3, Diamino-2-Hydroxypropane Pro-Drug Derivatives

Assignee: ELAN PHARM INCPriority: Sep 6, 2002Filed: Nov 13, 2007Published: Jul 3, 2008
Est. expirySep 6, 2022(expired)· nominal 20-yr term from priority
A61P 43/00A61P 9/00C07C 237/22C07D 241/24C07D 295/185C07D 401/04C07C 2601/14C07D 213/30A61P 25/02C07D 319/06C07C 317/50C07D 207/16C07D 333/48C07C 2601/08C07C 317/48C07D 207/12C07D 277/30C07C 271/22C07C 311/09C07D 261/18C07D 211/96C07D 333/32C07D 307/20C07D 277/56C07D 309/12C07D 237/04C07D 231/14C07D 207/26C07C 317/44A61P 25/16A61P 25/28C07D 209/08C07C 237/06C07D 213/81C07D 233/90C07C 255/29C07D 317/30C07D 213/82C07C 233/65C07C 323/60A61P 25/00C07C 2601/02C07D 263/32C07D 211/62C07C 215/14C07C 215/18A61K 31/00
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Claims

Abstract

The present invention relates to compounds of formula (AA) (I) and (X): useful in treating Alzheimer's disease and other similar diseases. These compounds include inhibitors of the beta-secretase enzyme that are useful in the treatment of Alzheimer's disease and other diseases characterized by deposition of A beta peptide in a mammal. The compounds of the invention are useful in pharmaceutical compositions and methods of treatment to reduce A beta peptide formation.

Claims

exact text as granted — not AI-modified
1 . A compound of formula: 
       
         
           
           
               
               
           
         
       
       or a pharmaceutically acceptable salt thereof, wherein one of R N  and R N ′ is hydrogen and
 the other is —C(═O)—(CRR′) 0-6 R 100 , —C(═O)—(CRR′) 1-6 —O—R′ 100 , —C(═O)—(CRR′) 1-6 —S—R′ 100 , —C(═O)—(CRR′) 1-6 —C(═O)—R 100 , —C(═O)—(CRR′) 1-6 —SO 2 —R 100 , —C(═O)—(CRR′) 1-6 —NR 100 —R′ 100 , or 
 
       
         
           
           
               
               
           
         
         
           wherein 
         
         R 4  is selected from the group consisting of H; NH 2 ; —NH—(CH 2 ) n6 —R 4-1 ; —NHR 8 ; —NR 50 C(O)R 5 ; C 1 -C 4  alkyl-NHC(O)R 5 ; —(CH 2 ) 0-4 R 8 ; —O—C 1 -C 4  alkanoyl; OH; C 6 -C 10  aryloxy optionally substituted with 1, 2, or 3 groups that are independently halogen, C 1 -C 4  alkyl, —CO 2 H, —C(O)—C 1 -C 4  alkoxy, or C 1 -C 4  alkoxy; C 1 -C 6  alkoxy; aryl C 1 -C 4  alkoxy; —NR 50 CO 2 R 51 ; —C 1 -C 4  alkyl-NR 50 CO 2 R 51 ; —C≡N; —CF 3 ; —CF 2 —CF 3 ; —C≡CH; —CH 2 —CH═CH 2 ; —(CH 2 ) 1-4 —R 4-1 ; —(CH 2 ) 1-4 —NH—R 4-1 ; —O—(CH 2 ) n6 —R 4-1 ; —S—(CH 2 ) n6 —R 4-1 ; —(CH 2 ) 0-4 —NHC(O)—(CH 2 ) 0-6 —R 52 ; —(CH 2 ) 0-4 —R 53 —(CH 2 ) 0-4 —R 54 ;
 wherein
 n 6  is 0, 1, 2, or 3; 
 n 7  is 0, 1, 2, or 3; 
 
 R 4-1  is selected from the group consisting of —SO 2 —(C 1 -C 8  alkyl), —SO—(C 1 -C 8  alkyl), —S—(C 1 -C 8  alkyl), —S—CO—(C 1 -C 6  alkyl), —SO 2 —NR 4-2 R 4-3 ; —CO—C 1 -C 2  alkyl; —CO—NR 4-3 R 4-4 ; 
 R 4-2  and R 4-3  are independently H, C 1 -C 3  alkyl, or C 3 -C 6  cycloalkyl; 
 R 4-4  is alkyl, arylalkyl, alkanoyl, or arylalkanoyl; 
 R 4-6  is —H or C 1 -C 6  alkyl; 
 R 5  is selected from the group consisting of C 3 -C 7  cycloalkyl; C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 groups that are independently halogen, —NR 6 R 7 , C 1 -C 4  alkoxy, C 5 -C 6  heterocycloalkyl, C 5 -C 6  heteroaryl, C 6 -C 10  aryl, C 3 -C 7  cycloalkyl C 1 -C 4  alkyl, —S—C 1 -C 4  alkyl, —SO 2 —C 1 -C 4  alkyl, —CO 2 H, —CONR 6 R 7 , —CO 2 —C 1 -C 4  alkyl, C 6 -C 10  aryloxy; heteroaryl optionally substituted with 1, 2, or 3 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, C 1 -C 4  haloalkyl, or OH; heterocycloalkyl optionally substituted with 1, 2, or 3 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, or C 2 -C 4  alkanoyl; aryl optionally substituted with 1, 2, 3, or 4 groups that are independently halogen, OH, C 1 -C 4  alkyl, C 1 -C 4  alkoxy, or C 1 -C 4  haloalkyl; and —NR 6 R 7 ; wherein
 R 6  and R 7  are independently selected from the group consisting of H, C 1 -C 6  alkyl, C 2 -C 6  alkanoyl, phenyl, —SO 2 —C 1 -C 4  alkyl, phenyl C 1 -C 4  alkyl; 
 
 R 8  is selected from the group consisting of —SO 2 -heteroaryl, —SO 2 -aryl, —SO 2 -heterocycloalkyl, —SO 2 —C 1 -C 10  alkyl, —C(O)NHR 9 , heterocycloalkyl, —S—C 1 -C 6  alkyl, —S—C 2 -C 4  alkanoyl, wherein
 R 9  is aryl C 1 -C 4  alkyl, C 1 -C 6  alkyl, or H; R 50  is H or C 1 -C 6  alkyl; 
 
 R 51  is selected from the group consisting of aryl C 1 -C 4  alkyl; C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 groups that are independently halogen, cyano, heteroaryl, —NR 6 R 7 , —C(O)NR 6 R 7 , C 3 -C 7  cycloalkyl, or —C 1 -C 4  alkoxy; heterocycloalkyl optionally substituted with 1 or 2 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, C 2 -C 4  alkanoyl, aryl C 1 -C 4  alkyl, and —SO 2 C 1 -C 4  alkyl; alkenyl; alkynyl; heteroaryl optionally substituted with 1, 2, or 3 groups that are independently OH, C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, NH 2 , NH(C 1 -C 6  alkyl) or N(C 1 -C 6  alkyl)(C 1 -C 6  alkyl); heteroarylalkyl optionally substituted with 1, 2, or 3 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, NH 2 , NH(C 1 -C 6  alkyl) or N(C 1 -C 6  alkyl)(C 1 -C 6  alkyl); aryl; heterocycloalkyl; C 3 -C 8  cycloalkyl; and cycloalkylalkyl; wherein the aryl; heterocycloalkyl, C 3 -C 8  cycloalkyl, and cycloalkylalkyl groups are optionally substituted with 1, 2, 3, 4 or 5 groups that are independently halogen, CN, NO 2 , C 1 -C 6  alkyl, C 1 -C 6  alkoxy, C 2 -C 6  alkanoyl, C 1 -C 6  haloalkyl, C 1 -C 6  haloalkoxy, hydroxy, C 1 -C 6  hydroxyalkyl, C 1 -C 6  alkoxy C 1 -C 6  alkyl, C 1 -C 6  thioalkoxy, C 1 -C 6  thioalkoxy C 1 -C 6  alkyl, or C 1 -C 6  alkoxy C 1 -C 6  alkoxy; 
 R 52  is heterocycloalkyl, heteroaryl, aryl, cycloalkyl, —S(O) 0-2 —C 1 -C 6  alkyl, CO 2 H, —C(O)NH 2 , —C(O)NH(alkyl), —C(O)N(alkyl)(alkyl), —CO 2 -alkyl, —NHS(O) 0-2 —C 1 -C 6  alkyl, —N (alkyl)S(O) 0-2 —C 1 -C 6  alkyl, —S(O) 0-2 -heteroaryl, —S(O) 0-2 -aryl, —NH(arylalkyl), —N(alkyl)(arylalkyl), thioalkoxy, or alkoxy, each of which is optionally substituted with 1, 2, 3, 4, or 5 groups that are independently alkyl, alkoxy, thioalkoxy, halogen, haloalkyl, haloalkoxy, alkanoyl, NO 2 , CN, alkoxycarbonyl, or aminocarbonyl; 
 R 53  is absent, —O—, —C(O)—, —NH—, —N(alkyl)-, —NH—S(O) 0-2 —, —N (alkyl)-S(O) 0-2 —, —S(O) 0-2 —NH—, —S(O) 0-2 —N(alkyl)-, —NH—C(S)—, or —N(alkyl)-C(S)—; 
 R 54  is heteroaryl, aryl, arylalkyl, heterocycloalkyl, CO 2 H, —CO 2 -alkyl, —C(O)NH(alkyl), —C(O)N(alkyl)(alkyl), —C(O)NH 2 , C 1 -C 8  alkyl, OH, aryloxy, alkoxy, arylalkoxy, NH 2 , NH(alkyl), N(alkyl)(alkyl), or —C 1 -C 6  alkyl-CO 2 —C 1 -C 6  alkyl, each of which is optionally substituted with 1, 2, 3, 4, or 5 groups that are independently alkyl, alkoxy, CO 2 H, —CO 2 -alkyl, thioalkoxy, halogen, haloalkyl, haloalkoxy, hydroxyalkyl, alkanoyl, NO 2 , CN, alkoxycarbonyl, or aminocarbonyl; 
 
         X is selected from the group consisting of —C 1 -C 6  alkylidenyl optionally substituted with 1, 2, or 3 methyl groups; and —NR 4-6 —; or
 R 4  and R 4-6  combine to form —(CH 2 ) n10 —, wherein
 n 10  is 1, 2, 3, or 4; 
 
 
         Z is selected from the group consisting of a bond; SO 2 ; SO; S; and C(O); 
         Y is selected from the group consisting of H; C 1 -C 4  haloalkyl; C 5 -C 6  heterocycloalkyl; C 6 -C 10  aryl; OH; —N(Y 1 )(Y 2 ); C 1 -C 10  alkyl optionally substituted with 1 thru 3 substituents which can be the same or different and are selected from the group consisting of halogen, hydroxy, alkoxy, thioalkoxy, and haloalkoxy; C 3 -C 8  cycloalkyl optionally substituted with 1, 2, or 3 groups independently selected from C 1 -C 3  alkyl, and halogen; alkoxy; aryl optionally substituted with halogen, alkyl, alkoxy, CN or NO 2 ; arylalkyl optionally substituted with halogen, alkyl, alkoxy, CN or NO 2 ; wherein
 Y 1  and Y 2  are the same or different and are H; C 1 -C 10  alkyl optionally substituted with 1, 2, or 3 substituents selected from the group consisting of halogen, C 1 -C 4  alkoxy, C 3 -C 8  cycloalkyl, and OH; C 2 -C 6  alkenyl; C 2 -C 6  alkanoyl; phenyl; —SO 2 —C 1 -C 4  alkyl; phenyl C 1 -C 4  alkyl; or C 3 -C 8  cycloalkyl C 1 -C 4  alkyl; or 
 Y 1 , Y 2  and the nitrogen to which they are attached form a ring selected from the group consisting of piperazinyl, piperidinyl, morpholinyl, and pyrrolidinyl, wherein each ring is optionally substituted with 1, 2, 3, or 4 groups that are independently C 1 -C 6  alkyl, C 1 -C 6  alkoxy, C 1 -C 6  alkoxy C 1 -C 6  alkyl, or halogen; 
 
         R 1  is —(CH 2 ) 1-2 —S(O) 0-2 —(C 1 -C 6  alkyl), or
 C 1 -C 10  alkyl optionally substituted with 1, 2, or 3 groups independently selected from halogen, OH, ═O, —SH, —C≡N, —CF 3 , —C 1 -C 3  alkoxy, amino, mono- or dialkylamino, —N(R)C(O)R′—, —OC(═O)-amino and —OC(═O)-mono- or dialkylamino, or 
 C 2 -C 6  alkenyl or C 2 -C 6  alkynyl, each of which is optionally substituted with 1, 2, or 3 groups independently selected from halogen, —OH, —SH, —C≡N, —CF 3 , C 1 -C 3  alkoxy, amino, and mono- or dialkylamino, or 
 aryl, heteroaryl, heterocyclyl, —C 1 -C 6  alkyl-aryl, —C 1 -C 6  alkyl-heteroaryl, or —C 1 -C 6  alkyl-heterocyclyl, where the ring portions of each are optionally substituted with 1, 2, 3, or 4 groups independently selected from halogen, —OH, —SH, —C≡N, —NR 105 R′ 105 , —CO 2 R, —N(R)COR′, or —N(R)SO 2 R′, —C(═O)—(C 1 -C 4 )alkyl, —SO 2 -amino, —SO 2 -mono or dialkylamino, —C(═O)-amino, —C(═O)-mono or dialkylamino, —SO 2 —(C 1 -C 4 )alkyl, or
 —C 1 -C 6  alkoxy optionally substituted with 1, 2, or 3 groups which are independently a halogen, or 
 C 3 -C 7  cycloalkyl optionally substituted with 1, 2, or 3 groups independently selected from halogen, —OH, —SH, —C≡N, —CF 3 , C 1 -C 3  alkoxy, amino, —C 1 -C 6  alkyl and mono- or dialkylamino, or 
 C 1 -C 10  alkyl optionally substituted with 1, 2, or 3 groups independently selected from halogen, —OH, —SH, —C≡N, —CF 3 , —C 1 -C 3  alkoxy, amino, mono- or dialkylamino and —C 1 -C 3  alkyl, or 
 C 2 -C 10  alkenyl or C 2 -C 10  alkynyl each of which is optionally substituted with 1, 2, or 3 groups independently selected from halogen, —OH, —SH, —C≡N, —CF 3 , C 1 -C 3  alkoxy, amino, C 1 -C 6  alkyl and mono- or dialkylamino; and 
 the heterocyclyl group is optionally further substituted with oxo; 
 
 
         R and R′ independently are hydrogen or C 1 -C 10  alkyl; 
         R 2  is selected from the group consisting of H; C 1 -C 6  alkyl, optionally substituted with 1, 2, or 3 substituents that are independently selected from the group consisting of C 1 -C 3  alkyl, halogen, —OH, —SH, —C≡N, —CF 3 , C 1 -C 3  alkoxy, and —NR 1-a R 1-b ; wherein R 1-a  and R 1-b  are —H or C 1 -C 6  alkyl;
 —(CH 2 ) 0-4 -aryl; —(CH 2 ) 0-4 -heteroaryl; C 2 -C 6  alkenyl; C 2 -C 6  alkynyl; —CONR N-2 R N-3 ; —SO 2 NR N-2 R N-3 ; —CO 2 H; and —CO 2 —(C 1 -C 4  alkyl); 
 
         R 3  is selected from the group consisting of H; C 1 -C 6  alkyl, optionally substituted with 1, 2, or 3 substituents independently selected from the group consisting of C 1 -C 3  alkyl, halogen, —OH, —SH, —C≡N, —CF 3 , C 1 -C 3  alkoxy, and —NR 1-a R 1-b ; —(CH 2 ) 0-4 -aryl; —(CH 2 ) 0-4 -heteroaryl; C 2 -C 6  alkenyl; C 2 -C 6  alkynyl; —CO—NR N-2 R N-3 ; —SO 2 —NR N-2 R N-3 ; —CO 2 H; and —CO—O—(C 1 -C 4  alkyl);
 or 
 
         R 2 , R 3  and the carbon to which they are attached form a carbocycle of three thru seven carbon atoms, wherein one carbon atom is optionally replaced by a group selected from —O—, —S—, —SO 2 —, or —NR N-2 —; 
         R C  is selected from the group consisting of C 1 -C 10  alkyl optionally substituted with 1, 2, or 3 groups independently selected from the group consisting of R 205 , —OC═ONR 235 R 240 , —S(═O) 0-2 (C 1 -C 6  alkyl), —SH, —NR 235 C═ONR 235 R 240 , —C═ONR 235 R 240 , and —S(═O) 2 NR 235 R 240 ; —(CH 2 ) 0-3 —(C 3 -C 8 )cycloalkyl wherein the cycloalkyl is optionally substituted with 1, 2, or 3 groups independently selected from the group consisting of R 205 , —CO 2 H, and —CO 2 —(C 1 -C 4  alkyl); —(CR 245 R 250 ) 0-4 -aryl; —(CR 245 R 250 ) 0-4 -heteroaryl; —(CR 245 R 250 ) 0-4 -heterocycloalkyl; —(CR 245 R 250 ) 0-4 -aryl-heteroaryl; —(CR 245 R 250 ) 0-4 -aryl-heterocycloalkyl; —(CR 245 R 250 ) 0-4 -aryl-aryl; —(CR 245 R 250 ) 0-4 -heteroaryl-aryl; —(CR 245 R 250 ) 0-4 -heteroaryl-heterocycloalkyl; —(CR 245 R 250 ) 0-4 -heteroaryl-heteroaryl; —(CR 245 R 250 ) 0-4 -heterocycloalkyl-heteroaryl; —(CR 245 R 250 ) 0-4 -heterocycloalkyl-heterocycloalkyl; —(CR 245 R 250 ) 0-4 -heterocycloalkyl-aryl; —[C(R 255 )(R 260 )] 1-3 —CO—N—(R 255 ) 2 ; —CH(aryl) 2 ; —CH(heteroaryl) 2 ; —CH(heterocycloalkyl) 2 ; —CH(aryl)(heteroaryl); cyclopentyl, cyclohexyl, or cycloheptyl ring fused to aryl, heteroaryl, or heterocycloalkyl wherein one carbon of the cyclopentyl, cyclohexyl, or cycloheptyl is optionally replaced with NH, NR 215 , O, or S(═O) 0-2 , and wherein the cyclopentyl, cyclohexyl, or cycloheptyl group can be optionally substituted with 1 or 2 groups that are independently R 205  or ═O; —CO—NR 235 R 240 ; —SO 2 —(C 1 -C 4  alkyl); C 2 -C 10  alkenyl optionally substituted with 1, 2, or 3 R 205  groups; C 2 -C 10  alkynyl optionally substituted with 1, 2, or 3 R 205  groups; —(CH 2 ) 0-1 —CH((CH 2 ) 0-6 —OH)—(CH 2 ) 0-1 -aryl; —(CH 2 ) 0-1 —CHR C-6 —(CH 2 ) 0-1 -heteroaryl; —CH(-aryl or -heteroaryl)-CO—O(C 1 -C 4  alkyl); —CH(—CH 2 —OH)—CH(OH)-phenyl-NO 2 ; (C 1 -C 6  alkyl)-O—(C 1 -C 6  alkyl)-OH; —CH 2 —NH—CH 2 —CH(—O—CH 2 —CH 3 ) 2 ; —H; and —(CH 2 ) 0-6 —C(═NR 235 )(NR 235 R 240 ); wherein
 each aryl is optionally substituted with 1, 2, or 3 R 200 ; 
 each heteroaryl is optionally substituted with 1, 2, 3, or 4 R 200 ; 
 each heterocycloalkyl is optionally substituted with 1, 2, 3, or 4 R 210 ; 
 R 200  at each occurrence is independently selected from the group consisting of C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 R 205  groups; OH; —NO 2 ; halogen; —CO 2 H; C≡N; —(CH 2 ) 0-4 —CO—NR 220 R 225 ; —(CH 2 ) 0-4 —CO—(C 1 -C 12  alkyl); —(CH 2 ) 0-4 —CO—(C 2 -C 12  alkenyl); —(CH 2 ) 0-4 —CO—(C 2 -C 12  alkynyl); —(CH 2 ) 0-4 —CO—(C 3 -C 7  cycloalkyl); —(CH 2 ) 0-4 —CO-aryl; —(CH 2 ) 0-4 —CO-heteroaryl; —(CH 2 ) 0-4 —CO-heterocycloalkyl; —(CH 2 ) 0-4 —CO 2 R 215 ; —(CH 2 ) 0-4 —SO 2 —NR 220 R 225 ; —(CH 2 ) 0-4 —SO—(C 1 -C 8  alkyl); —(CH 2 ) 0-4 —SO 2 —(C 1 -C 12  alkyl); —(CH 2 ) 0-4 —SO 2 —(C 3 -C 7  cycloalkyl); —(CH 2 ) 0-4 —N(H or R 215 )—CO 2 R 215 ; —(CH 2 ) 0-4 —N(H or R 215 )—CO—N(R 215 ) 2 ; —(CH 2 ) 0-4 —N—CS—N(R 215 ) 2 ; —(CH 2 ) 0-4 —N(—H or R 215 )—CO—R 220 ; —(CH 2 ) 0-4 —NR 220 R 225 ; —(CH 2 ) 0-4 —O—CO—(C 1 -C 6  alkyl); —(CH 2 ) 0-4 —O—P(O)—(OR 240 ) 2 ; —(CH 2 ) 0-4 —O—CO—N(R 215 ) 2 ; —(CH 2 ) 0-4 —O—CS—N(R 215 ) 2 ; —(CH 2 ) 0-4 —O—(R 215 ) 2 ; —(CH 2 ) 0-4 —O—(R 215 ) 2 —COOH; —(CH 2 ) 0-4 —S—(R 215 ) 2 ; —(CH 2 ) 0-4 —O—(C 1 -C 6  alkyl optionally substituted with 1, 2, 3, or 5 —F); C 3 -C 7  cycloalkyl; C 2 -C 6  alkenyl optionally substituted with 1 or 2 R 205  groups; C 2 -C 6  alkynyl optionally substituted with 1 or 2 R 205  groups; —(CH 2 ) 0-4 —N(H or R 215 )—SO 2 —R 220 ; and —(CH 2 ) 0-4 —C 3 -C 7  cycloalkyl;
 wherein each aryl group at each occurrence is optionally substituted with 1, 2, or 3 groups that are independently R 205 , R 210  or C 1 -C 6  alkyl substituted with 1, 2, or 3 groups that are independently R 205  or R 210 ; 
 wherein each heterocycloalkyl group at each occurrence is optionally substituted with 1, 2, or 3 groups that are independently R 210 ; 
 wherein each heteroaryl group at each occurrence is optionally substituted with 1, 2, or 3 groups that are independently R 205 , R 210 , or C 1 -C 6  alkyl substituted with 1, 2, or 3 groups that are independently R 205  or R 210 ; 
 
 R 205  at each occurrence is independently selected from the group consisting of C 1 -C 6  alkyl, halogen, —OH, —O-phenyl, —SH, —C≡N, —CF 3 , C 1 -C 6  alkoxy, NH 2 , NH(C 1 -C 6  alkyl), and N—(C 1 -C 6  alkyl)(C 1 -C 6  alkyl); 
 R 210  at each occurrence is independently selected from the group consisting of C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 R 205  groups; C 2 -C 6  alkenyl optionally substituted with 1, 2, or 3 R 205  groups; C 2 -C 6  alkynyl optionally substituted with 1, 2, or 3 R 205  groups; halogen; C 1 -C 6  alkoxy; C 1 -C 6  haloalkoxy; —NR 220 R 225 ; OH; C≡N; C 3 -C 7  cycloalkyl optionally substituted with 1, 2, or 3 R 205  groups; —CO—(C 1 -C 4  alkyl); —SO 2 —NR 235 R 240 ; —CO—NR 235 R 240 ; —SO 2 —(C 1 -C 4  alkyl); and ═O; wherein 
 R 215  at each occurrence is independently selected from the group consisting of C 1 -C 6  alkyl, —(CH 2 ) 0-2 -(aryl), C 2 -C 6  alkenyl, C 2 -C 6  alkynyl, C 3 -C 7  cycloalkyl, and —(CH 2 ) 0-2 -(heteroaryl), —(CH 2 ) 0-2 -(heterocycloalkyl); wherein the aryl group at each occurrence is optionally substituted with 1, 2, or 3 groups that are independently R 205  or R 210 ; wherein the heterocycloalkyl group at each occurrence is optionally substituted with 1, 2, or 3 R 210 ; wherein each heteroaryl group at each occurrence is optionally substituted with 1, 2, or 3 R 210 ; 
 R 220  and R 225  at each occurrence are independently selected from the group consisting of —H, —C 1 -C 6  alkyl, hydroxy C 1 -C 6  alkyl, amino C 1 -C 6  alkyl; halo C 1 -C 6  alkyl; —C 3 -C 7  cycloalkyl, —(C 1 -C 2  alkyl)-(C 3 -C 7  cycloalkyl), —(C 1 -C 6  alkyl)-O—(C 1 -C 3  alkyl), —C 2 -C 6  alkenyl, —C 2 -C 6  alkynyl, —C 1 -C 6  alkyl chain with one double bond and one triple bond, -aryl, -heteroaryl, and heterocycloalkyl; wherein the aryl group at each occurrence is optionally substituted with 1, 2, or 3 R 270  groups, wherein 
 R 270  at each occurrence is independently R 205 , C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 R 205  groups; C 2 -C 6  alkenyl optionally substituted with 1, 2, or 3 R 205  groups; C 2 -C 6  alkynyl optionally substituted with 1, 2, or 3 R 205  groups; halogen; C 1 -C 6  alkoxy; C 1 -C 6  haloalkoxy; NR 235 R 240 ; OH; C≡N; C 3 -C 7  cycloalkyl optionally substituted with 1, 2, or 3 R 205  groups; —CO—(C 1 -C 4  alkyl); —SO 2 —NR 235 R 240 ; —CO—NR 235 R 240 ; —SO 2 —(C 1 -C 4  alkyl); and ═O; wherein the heterocycloalkyl group at each occurrence is optionally substituted with 1, 2, or 3 R 205  groups; wherein each heteroaryl group at each occurrence is optionally substituted with 1, 2, or 3 R 205  groups; 
 R 235  and R 240  at each occurrence are independently H, or C 1 -C 6  alkyl; 
 R 245  and R 250  at each occurrence are independently selected from the group consisting of H, C 1 -C 4  alkyl, C 1 -C 4  hydroxyalkyl, C 1 -C 4  alkoxy, C 1 -C 4  haloalkoxy, —(CH 2 ) 0-4 —C 3 -C 7  cycloalkyl, C 2 -C 6  alkenyl, C 2 -C 6  alkynyl, aryl C 1 -C 4  alkyl, heteroaryl C 1 -C 4  alkyl, and phenyl; or 
 R 245  and R 250  are taken together with the carbon to which they are attached to form a carbocycle of 3, 4, 5, 6, or 7 carbon atoms, optionally where one carbon atom is replaced by a heteroatom selected from the group consisting of —O—, —S—, —SO 2 —, and —NR 220 —; 
 R 255  and R 260  at each occurrence are independently selected from the group consisting of H; C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 R 205  groups; C 2 -C 6  alkenyl optionally substituted with 1, 2, or 3 R 205  groups; C 2 -C 6  alkynyl optionally substituted with 1, 2, or 3 R 205  groups; —(CH 2 ) 1-2 —S(O) 0-2 —(C 1 -C 6  alkyl); —(CH 2 ) 0-4 —C 3 -C 7  cycloalkyl optionally substituted with 1, 2, or 3 R 205  groups; —(C 1 -C 4  alkyl)-aryl; —(C 1 -C 4  alkyl)-heteroaryl; —(C 1 -C 4  alkyl)-heterocycloalkyl; -aryl; -heteroaryl; -heterocycloalkyl; (CH 2 ) 1-4 —R 265 —(CH 2 ) 0-4 -aryl; —(CH 2 ) 1-4 —R 265 —(CH 2 ) 0-4 -heteroaryl; and; —(CH 2 ) 1-4 —R 265 —(CH 2 ) 0-4 -heterocycloalkyl; wherein
 R 265  at each occurrence is independently —O—, —S— or —N(C 1 -C 6  alkyl)-; 
 each aryl or phenyl is optionally substituted with 1, 2, or 3 groups that are independently R 205 , R 210 , or C 1 -C 6  alkyl substituted with 1, 2, or 3 groups that are independently R 205  or R 210 ; 
 each heteroaryl is optionally substituted with 1, 2, 3, or 4 R 200 , each heterocycloalkyl is optionally substituted with 1, 2, 3, or 4 R 210 ; 
 
 
         R 100  and R′ 100  independently represent aryl, heteroaryl, heterocyclyl, -aryl-W-aryl, -aryl-W-heteroaryl, -aryl-W-heterocyclyl, -heteroaryl-W-aryl, -heteroaryl-W-heteroaryl, -heteroaryl-W-heterocyclyl, -heterocyclyl-W-aryl, -heterocyclyl-W-heteroaryl, -heterocyclyl-W-heterocyclyl, —CH[(CH 2 ) 0-2 —O—R 150 ]—(CH 2 ) 0-2 -aryl, —CH[(CH 2 ) 0-2 —O—R 150 ]—(CH 2 ) 0-2 -heterocyclyl or —CH[(CH 2 ) 0-2 —O—R 150 ]—(CH 2 ) 0-2 -heteroaryl, where the ring portions of each are optionally substituted with 1, 2, or 3 groups independently selected from
 —OR, —NO 2 , C 1 -C 6  alkyl, halogen, —C≡N, —OCF 3 , —CF 3 , —(CH 2 ) 0-4 —O—P(═O)(OR)(OR′), —(CH 2 ) 0-4 —CO—NR 105 R′ 105 , —(CH 2 ) 0-4 —O— (CH 2 ) 0-4 —CONR 102 R 102 ′, —(CH 2 ) 0-4 —CO—(C 1 -C 12  alkyl), —(CH 2 ) 0-4 —CO—(C 2 -C 12  alkenyl), —(CH 2 ) 0-4 —CO—(C 2 -C 12  alkynyl), —(CH 2 ) 0-4 —CO—(CH 2 ) 0-4 (C 3 -C 7  cycloalkyl), —(CH 2 ) 0-4 —R 110 , —(CH 2 ) 0-4 —R 120 , —(CH 2 ) 0-4 —R 130 , —(CH 2 ) 0-4 —CO—R 110 , —(CH 2 ) 0-4 —CO—R 120 , —(CH 2 ) 0-4 —CO—R 130 , —(CH 2 ) 0-4 —CO—R 140 , —(CH 2 ) 0-4 —CO—O—R 150 , —(CH 2 ) 0-4 —SO 2 —NR 105 R′ 105 , —(CH 2 ) 0-4 —SO—(C 1 -C 8  alkyl), —(CH 2 ) 0-4 —SO 2 (C 1 -C 12  alkyl), —(CH 2 ) 0-4 —SO 2 —(CH 2 ) 0-4 —(C 3 -C 7  cycloalkyl), —(CH 2 ) 0-4 —N(R 150 )—CO—O—R 150 , —(CH 2 ) 0-4 —N(R 150 )—CO—N(R 150 ) 2 , —(CH 2 ) 0-4 —N(R 150 )—CS—N(R 150 ) 2 , —(CH 2 ) 0-4 —N(R 150 )—CO—R 105 , —(CH 2 ) 0-4 —NR 105 R′ 105 , —(CH 2 ) 0-4 —R 140 , —(CH 2 ) 0-4 —O—CO—(C 1 -C 6  alkyl), —(CH 2 ) 0-4 —O—P(O)—(O—R 110 ) 2 , —(CH 2 ) 0-4 —O—CO—N(R 150 ) 2 , —(CH 2 ) 0-4 —O—CS—N(R 150 ) 2 , —(CH 2 ) 0-4 —O—(R 150 ), —(CH 2 ) 0-4 —O—R 150 ′—COOH, —(CH 2 ) 0-4 —S—(R 150 ), —(CH 2 ) 0-4 —N(R 150 )—SO 2 —R 105 , —(CH 2 ) 0-4 —C 3 -C 7  cycloalkyl, (C 2 -C 10 )alkenyl, and (C 2 -C 10 )alkynyl, or 
 
         R 100  is C 1 -C 10  alkyl optionally substituted with 1, 2, or 3 R 115  groups, or 
         R 100  is —(C 1 -C 6  alkyl)-O—C 1 -C 6  alkyl) or —(C 1 -C 6  alkyl)-S—(C 1 -C 6  alkyl), each of which is optionally substituted with 1, 2, or 3 R 115  groups, or 
         R 100  is C 3 -C 8  cycloalkyl optionally substituted with 1, 2, or 3 R 115  groups; 
         W is —(CH 2 ) 0-4 —, —O—, —S(O) 0-2 —, —N(R 135 )—, —CR(OH)— or —C(O)—; 
         R 102  and R 102 ′ independently are hydrogen, or
 C 1 -C 10  alkyl optionally substituted with 1, 2, or 3 groups that are independently halogen, aryl or —R 110 ; 
 
         R 105  and R′ 105  independently represent —H, —R 110 , —R 120 , C 3 -C 7  cycloalkyl, —(C 1 -C 2  alkyl)-(C 3 -C 7  cycloalkyl), —(C 1 -C 6  alkyl)-O—(C 1 -C 3  alkyl), C 2 -C 6  alkenyl, C 2 -C 6  alkynyl, or C 1 -C 6  alkyl chain with one double bond and one triple bond, or
 C 1 -C 6  alkyl optionally substituted with —OH or —NH 2 ; or, 
 C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 groups independently selected from halogen, or 
 
         R 105  and R′ 105  together with the atom to which they are attached form a 3 to 7 membered carbocylic ring, where one member is optionally a heteroatom selected from —O—, —S(O) 0-2 —, —N(R 135 )—, the ring being optionally substituted with 1, 2 or 3 independently selected R 140  groups; 
         R 115  at each occurrence is independently halogen, —OH, —CO 2 R 102 , —C 1 -C 6  thioalkoxy, —CO 2 -phenyl, —NR 105 R′ 135 , —SO 2 —(C 1 -C 8  alkyl), —C(═O)R 180 , R 180 , —CONR 105 R′ 105 , —SO 2 NR 105 R′ 105 , —NH—CO—(C 1 -C 6  alkyl), —NH—C(═O)—OH, —NH—C(═O)—OR, —NH—C(═O)—O-phenyl, —O—C(═O)—(C 1 -C 6  alkyl), —O—C(═O)-amino, —O—C(═O)-mono- or dialkylamino, —O—C(═O)-phenyl, —O—(C 1 -C 6  alkyl)-CO 2 H, —NH—SO 2 — (C 1 -C 6  alkyl), C 1 -C 6  alkoxy or C 1 -C 6  haloalkoxy; 
         R 135  is C 1 -C 6  alkyl, C 2 -C 6  alkenyl, C 2 -C 6  alkynyl, C 3 -C 7  cycloalkyl, —(CH 2 ) 0-2 -(aryl), —(CH 2 ) 0-2 -(heteroaryl), or —(CH 2 ) 0-2 -(heterocyclyl); 
         R 140  is heterocyclyl optionally substituted with 1, 2, 3, or 4 groups independently selected from C 1 -C 6  alkyl, C 1 -C 6  alkoxy, halogen, hydroxy, cyano, nitro, amino, mono(C 1 -C 6 )alkylamino, di(C 1 -C 6 )alkylamino, C 2 -C 6  alkenyl, C 2 -C 6  alkynyl, C 1 -C 6  haloalkyl, C 1 -C 6  haloalkoxy, amino(C 1 -C 6 )alkyl, mono(C 1 -C 6 )alkylamino(C 1 -C 6 )alkyl, di(C 1 -C 6 )alkylamino(C 1 -C 6 )alkyl, and ═O; 
         R 145  is C 1 -C 6  alkyl or CF 3 ; 
         R 150  is hydrogen, C 3 -C 7  cycloalkyl, —(C 1 -C 2  alkyl)-(C 3 -C 7  cycloalkyl), C 2 -C 6  alkenyl, C 2 -C 6  alkynyl, C 1 -C 6  alkyl with one double bond and one triple bond, —R 110 , —R 120 , or
 C 1 -C 6  alkyl optionally substituted with 1, 2, 3, or 4 groups independently selected from —OH, —NH 2 , C 1 -C 3  alkoxy, R 110 , and halogen; 
 
         R 150 ′ is C 3 -C 7  cycloalkyl, —(C 1 -C 3  alkyl)-(C 3 -C 7  cycloalkyl), C 2 -C 6  alkenyl, C 2 -C 6  alkynyl, C 1 -C 6  alkyl with one double bond and one triple bond, —R 110 , —R 120 , or
 C 1 -C 6  alkyl optionally substituted with 1, 2, 3, or 4 groups independently selected from —OH, —NH 2 , C 1 -C 3  alkoxy, R 110 , and halogen; 
 
         R 155  is C 3 -C 7  cycloalkyl, —(C 1 -C 2  alkyl)-(C 3 -C 7  cycloalkyl), C 2 -C 6  alkenyl, C 2 -C 6  alkynyl, C 1 -C 6  alkyl with one double bond and one triple bond, —R 110 , —R 120 , or
 C 1 -C 6  alkyl optionally substituted with 1, 2, 3, or 4 groups independently selected from —OH, —NH 2 , C 1 -C 3  alkoxy, and halogen; 
 
         R 180  is selected from morpholinyl, thiomorpholinyl, piperazinyl, piperidinyl, homomorpholinyl, homothiomorpholinyl, homothiomorpholinyl S-oxide, homothiomorpholinyl S,S-dioxide, pyrrolinyl and pyrrolidinyl, each of which is optionally substituted with 1, 2, 3, or 4 groups independently selected from C 1 -C 6  alkyl, C 1 -C 6  alkoxy, halogen, hydroxy, cyano, nitro, amino, mono(C 1 -C 6 )alkylamino, di(C 1 -C 6 )alkylamino, C 2 -C 6  alkenyl, C 2 -C 6  alkynyl, C 1 -C 6  haloalkyl, C 1 -C 6  haloalkoxy, amino(C 1 -C 6 )alkyl, mono(C 1 -C 6 )alkylamino(C 1 -C 6 )alkyl, di(C 1 -C 6 )alkylamino(C 1 -C 6 )alkyl, and ═O; 
         R 110  is aryl optionally substituted with 1 or 2 R 125  groups; 
         R 125  at each occurrence is independently halogen, amino, mono- or dialkylamino, —OH, —C≡N, —SO 2 —NH 2 , —SO 2 —NH—C 1 -C 6  alkyl, —SO 2 —N(C 1 -C 6  alkyl) 2 , —SO 2 —(C 1 -C 4  alkyl), —CO—NH 2 , —CO—NH—C 1 -C 6  alkyl, or —CO—N(C 1 -C 6  alkyl) 2 , or
 C 1 -C 6  alkyl, C 2 -C 6  alkenyl or C 2 -C 6  alkynyl, each of which is optionally substituted with 1, 2, or 3 groups that are independently selected from C 1 -C 3  alkyl, halogen, —OH, —SH, —C≡N, —CF 3 , C 1 -C 3  alkoxy, amino, and mono- and dialkylamino, or 
 C 1 -C 6  alkoxy optionally substituted with one, two or three of halogen; 
 
         R 120  is heteroaryl, which is optionally substituted with 1 or 2 R 125  groups; and 
         R 130  is heterocyclyl optionally substituted with 1 or 2 R 125  groups. 
       
     
     
         2 . A compound according to  claim 1  wherein R N  is hydrogen. 
     
     
         3 . A compound according to  claim 1  wherein R N ′ is hydrogen. 
     
     
         4 . A compound according to  claim 1  wherein
 R 1  is —C 1 -C 6  alkyl-aryl, —C 1 -C 6  alkyl-heteroaryl, or —C 1 -C 6  alkyl-heterocyclyl, where the ring portions of each are optionally substituted with 1, 2, 3, or 4 groups independently selected from halogen, —OH, —SH, —C≡N, —NO 2 , —NR 105 R′ 105 , —CO 2 R, —N(R)COR′, or —N(R)SO 2 R′, —C(═O)—(C 1 -C 4 )alkyl, —SO 2 -amino, —SO 2 -mono or dialkylamino, —C(═O)-amino, —C(═O)-mono or dialkylamino, —SO 2 —(C 1 -C 4 )alkyl, or
 C 1 -C 6  alkoxy optionally substituted with 1, 2, or 3 groups which are independently selected from halogen, or 
 C 3 -C 7  cycloalkyl optionally substituted with 1, 2, or 3 groups independently selected from halogen, —OH, —SH, —C≡N, —CF 3 , C 1 -C 3  alkoxy, amino, —C 1 -C 6  alkyl and mono- or dialkylamino, or 
 C 1 -C 10  alkyl optionally substituted with 1, 2, or 3 groups independently selected from halogen, —OH, —SH, —C≡N, —CF 3 , —C 1 -C 3  alkoxy, amino, mono- or dialkylamino and —C 1 -C 3  alkyl, or 
 C 2 -C 10  alkenyl or C 2 -C 10  alkynyl each of which is optionally substituted with 1, 2, or 3 groups independently selected from halogen, —OH, —SH, —C≡N—CF 3 , C 1 -C 3  alkoxy, amino, C 1 -C 6  alkyl and mono- or dialkylamino; and the heterocyclyl group is optionally further substituted with oxo. 
   
     
     
         5 . A compound according to  claim 1  wherein
 R 2  and R 3  are independently selected from H or C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 substituents selected from the group consisting of C 1 -C 3  alkyl, halogen, —OH, —SH, —C≡N, —CF 3 , C 1 -C 3  alkoxy, and —NR 1-a R 1-b .   
     
     
         6 . A compound according to  claim 1  wherein
 R C  is —(CR 245 R 250 ) 0-4 -aryl, or —(CR 245 R 250 ) 0-4 -heteroaryl, wherein aryl and heteroaryl are optionally substituted with 1, 2, or 3 R 200  groups.   
     
     
         7 . A compound according to  claim 2  wherein
 R N ′ is   
       
         
           
           
               
               
           
         
         
           wherein 
         
         R 4  is NH 2 ; —NH— (CH 2 ) n6 —R 4-1 ; —NHR 8 ; —NR 50 C(O)R 5 ; or —NR 50 CO 2 R 51 ;
 wherein
 n 6  is 0, 1, 2, or 3; 
 n 7  is 0, 1, 2, or 3; 
 
 R 4-1  is selected from the group consisting of —SO 2 —(C 1 -C 8  alkyl), —SO—(C 1 -C 8  alkyl), —S—(C 1 -C 8  alkyl), —S—CO—(C 1 -C 6  alkyl), —SO 2 —NR 4-2 R 4-3 ; —CO—C 1 -C 2  alkyl; —CO—NR 4-3 R 4-4 ; 
 R 4-2  and R 4-3  are independently H, C 1 -C 3  alkyl, or C 3 -C 6  cycloalkyl; 
 R 4-4  is alkyl, phenylalkyl, C 2 -C 4  alkanoyl, or phenylalkanoyl; 
 
         R 5  is cyclopropyl; cyclobutyl; cyclopentyl; and cyclohexyl; wherein each cycloalkyl group is optionally substituted with one or two groups that are C 1 -C 6  alkyl, more preferably C 1 -C 2  alkyl, C 1 -C 6  alkoxy, more preferably C 1 -C 2  alkoxy, CF 3 , OH, NH 2 , NH(C 1 -C 6  alkyl), N(C 1 -C 6  alkyl)(C 1 -C 6  alkyl), halogen, CN, or NO 2 ; or the cycloalkyl group is substituted with 1 or 2 groups that are independently CF 3 , Cl, F, methyl, ethyl or cyano; C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 groups that are independently halogen, —NR 6 R 7 , C 1 -C 4  alkoxy, C 5 -C 6  heterocycloalkyl, C 5 -C 6  heteroaryl, phenyl, C 3 -C 7  cycloalkyl, —S—C 1 -C 4  alkyl, —SO 2 —C 1 -C 4  alkyl, —CO 2 H, —CONR 6 R 7 , —CO 2 —C 1 -C 4  alkyl, or phenyloxy; heteroaryl optionally substituted with 1, 2, or 3 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, C 1 -C 4  haloalkyl, or OH; heterocycloalkyl optionally substituted with 1, 2, or 3 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, or C 2 -C 4  alkanoyl; phenyl optionally substituted with 1, 2, 3, or 4 groups that are independently halogen, OH, C 1 -C 4  alkyl, C 1 -C 4  alkoxy, or C 1 -C 4  haloalkyl; and —NR 6 R 7 ; wherein
 R 6  and R 7  are independently selected from the group consisting of H, C 1 -C 6  alkyl, C 2 -C 6  alkanoyl, phenyl, —SO 2 —C 1 -C 4  alkyl, and phenyl C 1 -C 4  alkyl; 
 R 8  is selected from the group consisting of —SO 2 -heteroaryl optionally substituted with 1 or 2 groups that are independently C 1 -C 4  alkyl or halogen; —SO 2 -aryl, —SO 2 -heterocycloalkyl, —C(O)NHR 9 , heterocycloalkyl, —S—C 2 -C 4  alkanoyl, wherein
 R 9  is phenyl C 1 -C 4  alkyl, C 1 -C 6  alkyl, or H; R 50  is H or C 1 -C 6  alkyl; 
 
 R 51  is selected from the group consisting of phenyl C 1 -C 4  alkyl; C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 groups that are independently halogen, cyano, —NR 6 R 7 , —C(O)NR 6 R 7 , C 3 -C 7  or —C 1 -C 4  alkoxy; heterocycloalkyl optionally substituted with 1 or 2 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, C 2 -C 4  alkanoyl, phenyl C 1 -C 4  alkyl, and —SO 2 C 1 -C 4  alkyl; heterocycloalkylalkyl optionally substituted with 1 or 2 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, C 2 -C 4  alkanoyl, phenyl C 1 -C 4  alkyl, and —SO 2 C 1 -C 4  alkyl; alkenyl; alkynyl; heteroaryl optionally substituted with 1, 2, or 3 groups that are independently OH, C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, NH 2 , NH(C 1 -C 6  alkyl) or N(C 1 -C 6  alkyl)(C 1 -C 6  alkyl); heteroarylalkyl optionally substituted with 1, 2, or 3 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, NH 2 , NH(C 1 -C 6  alkyl) or N(C 1 -C 6  alkyl)(C 1 -C 6  alkyl); phenyl; C 3 -C 8  cycloalkyl, and cycloalkylalkyl, wherein the phenyl; C 3 -C 8  cycloalkyl, and cycloalkylalkyl groups are optionally substituted with 1, 2, 3, 4 or 5 groups that are independently halogen, CN, NO 2 , C 1 -C 6  alkyl, C 1 -C 6  alkoxy, C 2 -C 6  alkanoyl, C 1 -C 6  haloalkyl, C 1 -C 6  haloalkoxy, hydroxy, C 1 -C 6  hydroxyalkyl, C 1 -C 6  alkoxy C 1 -C 6  alkyl, C 1 -C 6  thioalkoxy, C 1 -C 6  thioalkoxy C 1 -C 6  alkyl, or C 1 -C 6  alkoxy C 1 -C 6  alkoxy. 
 
       
     
     
         8 . A compound according to  claim 3  wherein
 R N  is   
       
         
           
           
               
               
           
         
         
           wherein 
         
         R 4  is NH 2 ; —NH—(CH 2 ) n6 —R 4-1 ; —NHR 8 ; —NR 50 C(O)R 5 ; or —NR 50 CO 2 R 51 ;
 wherein
 n 6  is 0, 1, 2, or 3; 
 n 7  is 0, 1, 2, or 3; 
 
 R 4-1  is selected from the group consisting of —SO 2 —(C 1 -C 8  alkyl), —SO—(C 1 -C 8  alkyl), —S—(C 1 -C 8  alkyl), —S—CO—(C 1 -C 6  alkyl), —SO 2 —NR 4-2 R 4-3 ; —CO—C 1 -C 2  alkyl; —CO—NR 4-3 R 4-4 ; 
 R 4-2  and R 4-3  are independently H, C 1 -C 3  alkyl, or C 3 -C 6  cycloalkyl; 
 R 4-4  is alkyl, phenylalkyl, C 2 -C 4  alkanoyl, or phenylalkanoyl; 
 
         R 5  is cyclopropyl; cyclobutyl; cyclopentyl; and cyclohexyl; wherein each cycloalkyl group is optionally substituted with one or two groups that are C 1 -C 6  alkyl, more preferably C 1 -C 2  alkyl, C 1 -C 6  alkoxy, more preferably C 1 -C 2  alkoxy, CF 3 , OH, NH 2 , NH(C 1 -C 6  alkyl), N(C 1 -C 6  alkyl)(C 1 -C 6  alkyl), halogen, CN, or NO 2 ; or the cycloalkyl group is substituted with 1 or 2 groups that are independently CF 3 , Cl, F, methyl, ethyl or cyano; C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 groups that are independently halogen, —NR 6 R 7 , C 1 -C 4  alkoxy, C 5 -C 6  heterocycloalkyl, C 5 -C 6  heteroaryl, phenyl, C 3 -C 7  cycloalkyl, —S—C 1 -C 4  alkyl, —SO 2 —C 1 -C 4  alkyl, —CO 2 H, —CONR 6 R 7 , —CO 2 —C 1 -C 4  alkyl, or phenyloxy; heteroaryl optionally substituted with 1, 2, or 3 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, C 1 -C 4  haloalkyl, or OH; heterocycloalkyl optionally substituted with 1, 2, or 3 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, or C 2 -C 4  alkanoyl; phenyl optionally substituted with 1, 2, 3, or 4 groups that are independently halogen, OH, C 1 -C 4  alkyl, C 1 -C 4  alkoxy, or C 1 -C 4  haloalkyl; and —NR 6 R 7 ; wherein
 R 6  and R 7  are independently selected from the group consisting of H, C 1 -C 6  alkyl, C 2 -C 6  alkanoyl, phenyl, —SO 2 —C 1 -C 4  alkyl, and phenyl C 1 -C 4  alkyl; 
 R 8  is selected from the group consisting of —SO 2 -heteroaryl optionally substituted with 1 or 2 groups that are independently C 1 -C 4  alkyl or halogen; —SO 2 -aryl, —SO 2 -heterocycloalkyl, —C(O)NHR 9 , heterocycloalkyl, —S—C 2 -C 4  alkanoyl, wherein
 R 9  is phenyl C 1 -C 4  alkyl, C 1 -C 6  alkyl, or H; R 50  is H or C 1 -C 6  alkyl; 
 R 51  is selected from the group consisting of phenyl C 1 -C 4  alkyl; C 1 -C 6  alkyl optionally substituted with 1, 2, or 3 groups that are independently halogen, cyano, —NR 6 R 7 , —C(O)NR 6 R 7 , C 3 -C 7  or —C 1 -C 4  alkoxy; heterocycloalkyl optionally substituted with 1 or 2 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, C 2 -C 4  alkanoyl, phenyl C 1 -C 4  alkyl, and —SO 2 C 1 -C 4  alkyl; heterocycloalkylalkyl optionally substituted with 1 or 2 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, C 2 -C 4  alkanoyl, phenyl C 1 -C 4  alkyl, and —SO 2 C 1 -C 4  alkyl; alkenyl; alkynyl; heteroaryl optionally substituted with 1, 2, or 3 groups that are independently OH, C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, NH 2 , NH(C 1 -C 6  alkyl) or N(C 1 -C 6  alkyl)(C 1 -C 6  alkyl); heteroarylalkyl optionally substituted with 1, 2, or 3 groups that are independently C 1 -C 4  alkyl, C 1 -C 4  alkoxy, halogen, NH 2 , NH(C 1 -C 6  alkyl) or N(C 1 -C 6  alkyl)(C 1 -C 6  alkyl); phenyl; C 3 -C 8  cycloalkyl, and cycloalkylalkyl, wherein the phenyl; C 3 -C 8  cycloalkyl, and cycloalkylalkyl groups are optionally substituted with 1, 2, 3, 4 or 5 groups that are independently halogen, CN, NO 2 , C 1 -C 6  alkyl, C 1 -C 6  alkoxy, C 2 -C 6  alkanoyl, C 1 -C 6  haloalkyl, C 1 -C 6  haloalkoxy, hydroxy, C 1 -C 6  hydroxyalkyl, C 1 -C 6  alkoxy C 1 -C 6  alkyl, C 1 -C 6  thioalkoxy, C 1 -C 6  thioalkoxy C 1 -C 6  alkyl, or C 1 -C 6  alkoxy C 1 -C 6  alkoxy. 
 
 
       
     
     
         9 . A compound according to  claim 2  wherein
 R N ′ is —C(═O)-phenyl, where the phenyl ring is optionally substituted with 1 or 2 groups independently selected from
 C 1 -C 6  alkyl, halogen, —(CH 2 ) 0-4 —CO—NR 105 R′ 105 , —(CH 2 ) 0-4 —O—CO—N(R 150 ) 2 , —(CH 2 ) 0-4 —N(R 150 )—SO 2 —R 105 , —(CH 2 ) 0-4 —SO 2 —NR 105 R′ 105 , C 3 -C 7  cycloalkyl, (C 2 -C 10 )alkenyl, —(CH 2 ) 0-4 —R 110 , —(CH 2 ) 0-4 —R 120 , —(CH 2 ) 0-4 —R 130 , or (C 2 -C 10 )alkynyl. 
   
     
     
         10 . A compound according to  claim 3  wherein
 R N  is —C(═O)-phenyl, where the phenyl ring is optionally substituted with 1 or 2 groups independently selected from
 C 1 -C 6  alkyl, halogen, —(CH 2 ) 0-4 —CO—NR 105 R′ 105 , —(CH 2 ) 0-4 —O—CO—N(R 150 ) 2 , —(CH 2 ) 0-4 —N(R 150 )—SO 2 —R 105 , —(CH 2 ) 0-4 —SO 2 —NR 105 R′ 105 , C 3 -C 7  cycloalkyl, (C 2 -C 10 )alkenyl, —(CH 2 ) 0-4 —R 110 , —(CH 2 ) 0-4 —R 120 , —(CH 2 ) 0-4 —R 130 , or (C 2 -C 10 )alkynyl. 
   
     
     
         11 . A compound according to  claim 1  selected from the group consisting of: 
       
         
           
                 
                 
               
                     
                     
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-ethylbenzyl)-D- 
                 
                     
                   alaninamide dihydrochloride 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 [(benzyloxy)carbonyl]-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-D-alaninamide trifluoroacetate 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[(methylsulfonyl)amino]- 
                 
                     
                   1,3-thiazole-5-carboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-L-alaninamide bis(trifluoroacetate) 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N-(3- 
                 
                     
                   ethylbenzyl)propanamide hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)propanoate 
                 
                     
                   dihydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   dihydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   dihydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   dihydrochloride 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N\(u)1\(d)-(3-ethylbenzyl)-5-(1,3-oxazol-2- 
                 
                     
                   yl)-N 3 ,N 3 -dipropylisophthalamide hydrochloride 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-(1,3-oxazol-2-yl)-N 3 ,N 3 -dipropyl-N 1 -[3- 
                 
                     
                   (trifluoromethyl)benzyl]isophthalamide hydrochloride 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-(1,3-oxazol-2-yl)-N 3 ,N 3 -dipropyl-N 1 -[3- 
                 
                     
                   (trifluoromethyl)benzyl]isophthalamide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethynylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-ethylbenzyl)- 
                 
                     
                   N 2 [(methoxy)carbonyl]-D-alaninamide dihydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-{[(2-hydroxyethyl)amino]sulfonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(2- 
                 
                     
                   isobutyl-1,3-thiazol-5-yl)methyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-ethynylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   isopropylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-ethynylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   isopropylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-{[(2-hydroxy-1,1-dimethylethyl)amino]sulfonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-(4-methyl-1,3-oxazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(2- 
                 
                     
                   isobutyl-1,3-thiazol-5-yl)methyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-{[(3-hydroxypropyl)amino]sulfonyl}benzoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   propylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[butyl(methyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethynylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-ethynylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(3- 
                 
                     
                   isobutylisoxazol-5-yl)methyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-ethynylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dimethylamino)sulfonyl]- 
                 
                     
                   5-[(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-(1,3-oxazol-2-yl)benzoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3-(5- 
                 
                     
                   formyl-2-thienyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl 3-bromo-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-({[(1R)-2-hydroxy-1-methylethyl]amino}sulfonyl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   isobutylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-ethynylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-{[(2R)-2- 
                 
                     
                   (methoxymethyl)pyrrolidin-1-yl]carbonyl}-5-methylbenzoate 
                 
                     
                   hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-({[(1S)-2-hydroxy-1-methylethyl]amino}sulfonyl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[butyl(propyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dibutylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3-(3- 
                 
                     
                   hydroxyprop-1-yn-1-yl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-{[(2S)-2-(hydroxymethyl)pyrrolidin-1-yl]sulfonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[butyl(ethyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethynylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[cyclohexyl(methyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-({[3- 
                 
                     
                   (cyclopropylamino)benzyl]amino}methyl)-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   ethynylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3-(3- 
                 
                     
                   thienyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-(piperazin-1-ylsulfonyl)benzoate dihydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   iodophenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-sec-butylbenzyl)amino]methyl}-3- 
                 
                     
                   (3,5-difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-(3-methylisoxazol-4-yl)benzoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   isobutylisoxazol-5-yl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-[(dipropylamino)carbonyl]- 
                 
                     
                   6-methylisonicotinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[(cyclopropylmethyl)(propyl)amino]carbonyl}-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethynylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(aminosulfonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({3-[(1Z)- 
                 
                     
                   prop-1-en-1-yl]benzyl}amino)methyl]propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-(1H-pyrazol-4-yl)benzoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)-1-methylethyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-ethynylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-1-{[(3-allylbenzyl)amino]methyl}-2-amino-3- 
                 
                     
                   (3,5-difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)-1-methylethyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[ethyl(propyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-({[3- 
                 
                     
                   (cyclopropylamino)benzyl]amino}methyl)-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethynylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-ethynylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   isobutylisoxazol-5-yl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3-(5- 
                 
                     
                   formyl-4-methyl-2-thienyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   isopropylbenzyl)amino]methyl}propyl 5- 
                 
                     
                   [(dipropylamino)carbonyl]nicotinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({3- 
                 
                     
                   [(methylsulfonyl)amino]benzyl}amino)methyl]propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(butylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3-(3- 
                 
                     
                   methylbutyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(biphenyl-3-ylmethyl)amino]methyl}- 
                 
                     
                   3-(3,5-difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethynylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-({[2-(methylamino)ethyl]amino}sulfonyl)benzoate 
                 
                     
                   hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   isobutylisoxazol-5-yl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-ethynylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(diallylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2R)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(2- 
                 
                     
                   isobutyl-1,3-thiazol-5-yl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)-1-methylethyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-{[(2- 
                 
                     
                   hydroxyethyl)amino]sulfonyl}-5- 
                 
                     
                   [(propylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-methyl-5- 
                 
                     
                   {[methyl(propyl)amino]carbonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(phenylsulfonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(diethylamino)carbonyl]- 
                 
                     
                   5-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(benzylamino)carbonyl]-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]alaninate trifluoroacetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3-pyridin- 
                 
                     
                   3-ylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5- 
                 
                     
                   [(dipropylamino)carbonyl]nicotinate 1-oxide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3-(3- 
                 
                     
                   formyl-2-furyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-(1-methyl-1H-imidazol-2-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(diethylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3- 
                 
                     
                   (ethylsulfinyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[butyl(ethyl)amino]sulfonyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-cyanobenzyl)amino]methyl}-3- 
                 
                     
                   (3,5-difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]propanoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[isobutyl(methyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3-pyridin- 
                 
                     
                   2-ylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl 2-[(methylsulfonyl)amino]- 
                 
                     
                   1,3-oxazole-4-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({3- 
                 
                     
                   [methyl(methylsulfonyl)amino]benzyl}amino)methyl]propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(3-phenylpropanoyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate trifluoroacetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3- 
                 
                     
                   (ethylsulfonyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(5-chloro-2- 
                 
                     
                   thienyl)sulfonyl]-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   hydrochloride 
                 
                     
                   (1R,2S)-1-({[3-(5-acetyl-2- 
                 
                     
                   thienyl)benzyl]amino}methyl)-2-amino-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(sec- 
                 
                     
                   butylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(1,3-oxazol-2-yl)benzoate 
                 
                     
                   hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-methyl-5-{[methyl(2- 
                 
                     
                   phenylethyl)amino]carbonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3-(3,5- 
                 
                     
                   dimethylisoxazol-4-yl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-methyl-5-{[methyl(prop-2- 
                 
                     
                   yn-1-yl)amino]carbonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[ethyl(methyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   {[(dimethylamino)carbonyl]oxy}benzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[benzyl(methyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-{[sec- 
                 
                     
                   butyl(propyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3-(4- 
                 
                     
                   methyl-2-thienyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({3- 
                 
                     
                   [(methoxycarbonyl)(methyl)amino]benzyl}amino)methyl]propyl 
                 
                     
                   3-[(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)-3-(2,3,5- 
                 
                     
                   trifluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(diisobutylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-methyl-5-{[methyl(2- 
                 
                     
                   pyridin-2-ylethyl)amino]carbonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-fluoro-5-hydroxyphenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3-chloro-5-fluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl 4-hydroxy-3-(pyrrolidin-1- 
                 
                     
                   ylcarbonyl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-oxo-D-prolyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3-pyridin- 
                 
                     
                   4-ylbenzyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({3- 
                 
                     
                   [(dimethylamino)sulfonyl]benzyl}amino)methyl]propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(6-methoxy- 
                 
                     
                   1,2,3,4-tetrahydronaphthalen-1-yl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(phenylacetyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(azepan-1-ylcarbonyl)-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({3- 
                 
                     
                   [(methoxycarbonyl)amino]benzyl}amino)methyl]propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-oxo-L-prolyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(isobutylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   4-[((1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl)oxy]-4-oxo-3-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}butanoic acid trifluoroacetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [methyl(methylsulfonyl)amino]benzoate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-{[(2- 
                 
                     
                   hydroxyethyl)amino]sulfonyl}-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-ethynyl-N-[(2-isobutyl-1,3-thiazol-5- 
                 
                     
                   yl)methyl]-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-ethynyl-N-(3-isopropylbenzyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-isopropylbenzyl)-5-(1,3-oxazol-2-yl)- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-{[(2-hydroxy-1,1- 
                 
                     
                   dimethylethyl)amino]sulfonyl}-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-(4-methyl-1,3-oxazol-2- 
                 
                     
                   yl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(2-isobutyl-1,3-thiazol-5-yl)methyl]-5- 
                 
                     
                   (1,3-oxazol-2-yl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-{[(3- 
                 
                     
                   hydroxypropyl)amino]sulfonyl}-N′,N′-dipropylisophthalamide 
                 
                     
                   hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N′,N′-dipropyl-N-(3- 
                 
                     
                   propylbenzyl)isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-butyl-N-(3-ethylbenzyl)-N′,5- 
                 
                     
                   dimethylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-ethynyl-N-(3-ethynylbenzyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-ethynyl-N-[(3-isobutylisoxazol-5-yl)methyl]- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-[(dimethylamino)sulfonyl]-N-(3-ethylbenzyl)- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-(1,3-oxazol-2-yl)-N′,N′- 
                 
                     
                   dipropylisophthalamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(5-formyl-2-thienyl)benzyl]-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-bromo-N-(3-iodobenzyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-({[(1R)-2-hydroxy-1- 
                 
                     
                   methylethyl]amino}sulfonyl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-isobutylbenzyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-ethynyl-N′,N′-dipropyl-N-[3- 
                 
                     
                   (trifluoromethyl)benzyl]isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-{[(2R)-2- 
                 
                     
                   (methoxymethyl)pyrrolidin-1-yl]carbonyl}-5-methylbenzamide 
                 
                     
                   hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-({[(1S)-2-hydroxy-1- 
                 
                     
                   methylethyl]amino}sulfonyl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-butyl-N-(3-ethylbenzyl)-5-methyl-N′- 
                 
                     
                   propylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′,N′-dibutyl-N-(3-ethylbenzyl)-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(3-hydroxyprop-1-yn-1-yl)benzyl]-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-{[(2S)-2- 
                 
                     
                   (hydroxymethyl)pyrrolidin-1-yl]sulfonyl}-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-butyl-N′-ethyl-N-(3-ethylbenzyl)-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethynylbenzyl)-5-(1,3-oxazol-2-yl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-cyclohexyl-N-(3-ethylbenzyl)-N′,5- 
                 
                     
                   dimethylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(cyclopropylamino)benzyl]-5-ethynyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N′,N′-dipropyl-N-[3-(3- 
                 
                     
                   thienyl)benzyl]isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-(1,3-oxazol-2-yl)-N′,N′-dipropyl-N-[3- 
                 
                     
                   (trifluoromethyl)benzyl]isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-(piperazin-1-ylsulfonyl)- 
                 
                     
                   N′,N′-dipropylisophthalamide dihydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(3-iodophenyl)cyclopropyl]-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-sec-butylbenzyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-(3-methylisoxazol-4-yl)- 
                 
                     
                   N′,N′-dipropylisophthalamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(3-isobutylisoxazol-5-yl)cyclopropyl]-5- 
                 
                     
                   (1,3-oxazol-2-yl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(3-ethylphenyl)cyclopropyl]-5-(1,3- 
                 
                     
                   oxazol-2-yl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N 4 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 4 -(3-ethylbenzyl)-6-methyl-N 2 ,N 2 - 
                 
                     
                   dipropylpyridine-2,4-dicarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-(cyclopropylmethyl)-N-(3-ethylbenzyl)-5- 
                 
                     
                   methyl-N′-propylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-methoxybenzyl)-5-(1,3-oxazol-2-yl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(3-ethynylphenyl)cyclopropyl]-5-(1,3- 
                 
                     
                   oxazol-2-yl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-(aminosulfonyl)-N-(3-ethylbenzyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-{3-[(1Z)-prop-1-en-1-yl]benzyl}- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′,N′-dipropyl-5-(1H- 
                 
                     
                   pyrazol-4-yl)isophthalamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(3-ethylphenyl)-1-methylethyl]-5-ethynyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N′,N′-dipropyl-N-[3- 
                 
                     
                   (trifluoromethyl)benzyl]isophthalamide 
                 
                     
                   N-(3-allylbenzyl)-N-[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(3-ethylphenyl)cyclopropyl]-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(3-ethylphenyl)-1-methylethyl]-5-(1,3- 
                 
                     
                   oxazol-2-yl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-ethyl-N-(3-ethylbenzyl)-5-methyl-N′- 
                 
                     
                   propylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(cyclopropylamino)benzyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-ethynyl-N-[1-(3-ethynylphenyl)cyclopropyl]- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(3-isobutylisoxazol-5-yl)cyclopropyl]-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(5-formyl-4-methyl-2-thienyl)benzyl]-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-isopropylbenzyl)-N′,N′-dipropylpyridine- 
                 
                     
                   3,5-dicarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-{3-[(methylsulfonyl)amino]benzyl}- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-butyl-N-(3-ethylbenzyl)-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-[3-(3-methylbutyl)benzyl]-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(biphenyl-3-ylmethyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(3-ethynylphenyl)cyclopropyl]-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-({[2- 
                 
                     
                   (methylamino)ethyl]amino}sulfonyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-ethynyl-N-[1-(3-isobutylisoxazol-5- 
                 
                     
                   yl)cyclopropyl]-N′,N′-dipropylisophthalamide 
                 
                     
                   N,N-diallyl-N′-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)- 
                 
                     
                   2-hydroxybutyl]-N′-(3-ethylbenzyl)-5-methylisophthalamide 
                 
                     
                   N-[(2R,3R)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(2-isobutyl-1,3-thiazol-5- 
                 
                     
                   yl)cyclopropyl]-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(3-ethylphenyl)-1-methylethyl]-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-{[(2- 
                 
                     
                   hydroxyethyl)amino]sulfonyl}-N′-propylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′,5-dimethyl-N′- 
                 
                     
                   propylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -(phenylsulfonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′,N′-diethyl-N-(3-ethylbenzyl)-5-(1,3-oxazol- 
                 
                     
                   2-yl)isophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 2 -[(benzylamino)carbonyl]-N 1 -(3-ethylbenzyl)- 
                 
                     
                   3-[(1-propylbutyl)sulfonyl]alaninamide trifluoroacetate 
                 
                     
                   (salt) 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N′,N′-dipropyl-N-(3-pyridin-3- 
                 
                     
                   ylbenzyl)isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′,N′-dipropylpyridine-3,5- 
                 
                     
                   dicarboxamide 1-oxide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-ethyl-N-[3-(3-formyl-2-furyl)benzyl]-5- 
                 
                     
                   methyl-N′-propylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-(1-methyl-1H-imidazol-2- 
                 
                     
                   yl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′,N′-diethyl-N-(3-ethylbenzyl)-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(ethylsulfinyl)benzyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-{[butyl(ethyl)amino]sulfonyl}-N-(3- 
                 
                     
                   ethylbenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-cyanobenzyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]propanamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-isobutyl-N′,5- 
                 
                     
                   dimethylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N′,N′-dipropyl-N-(3-pyridin-2- 
                 
                     
                   ylbenzyl)isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-iodobenzyl)-2-[(methylsulfonyl)amino]- 
                 
                     
                   1,3-oxazole-4-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-{3- 
                 
                     
                   [methyl(methylsulfonyl)amino]benzyl}-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -(3-phenylpropanoyl)-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]alaninamide trifluoroacetate (salt) 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(ethylsulfonyl)benzyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 2 -[(5-chloro-2-thienyl)sulfonyl]-N 1 -(3- 
                 
                     
                   ethylbenzyl)-3-[(1-propylbutyl)sulfonyl]alaninamide 
                 
                     
                   hydrochloride 
                 
                     
                   N-[3-(5-acetyl-2-thienyl)benzyl]-N-[(2R,3S)-3-amino-4- 
                 
                     
                   (3,5-difluorophenyl)-2-hydroxybutyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-(sec-butyl)-N-(3-ethylbenzyl)-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(1,3-oxazol-2-yl)benzamide 
                 
                     
                   hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′,5-dimethyl-N′-(2- 
                 
                     
                   phenylethyl)isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(3,5-dimethylisoxazol-4-yl)benzyl]-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′,5-dimethyl-N′-prop-2-yn- 
                 
                     
                   1-ylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-ethyl-N-(3-ethylbenzyl)-N′,5- 
                 
                     
                   dimethylisophthalamide 
                 
                     
                   3-[([(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]{3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoyl}amino)methyl]phenyl dimethylcarbamate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-benzyl-N-(3-ethylbenzyl)-N′,5- 
                 
                     
                   dimethylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-(sec-butyl)-N-(3-ethylbenzyl)-5-methyl-N′- 
                 
                     
                   propylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-[3-(4-methyl-2-thienyl)benzyl]- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   methyl {3-[([(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]{3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoyl}amino)methyl]phenyl}methylcarbamate 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(2,3,5- 
                 
                     
                   trifluorophenyl)butyl]-5-methyl-N′,N′-dipropyl-N-[3- 
                 
                     
                   (trifluoromethyl)benzyl]isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′,N′-diisobutyl-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′,5-dimethyl-N′-(2-pyridin- 
                 
                     
                   2-ylethyl)isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-fluoro-5-hydroxyphenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-methoxybenzyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide hydrochloride 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3-chloro-5-fluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene- 
                 
                     
                   1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-hydroxy-N-(3-iodobenzyl)-3-(pyrrolidin-1- 
                 
                     
                   ylcarbonyl)benzamide 
                 
                     
                   5-oxo-D-prolyl-N 1 -[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N′,N′-dipropyl-N-(3-pyridin-4- 
                 
                     
                   ylbenzyl)isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-{3-[(dimethylamino)sulfonyl]benzyl}-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(6-methoxy-1,2,3,4-tetrahydronaphthalen-1- 
                 
                     
                   yl)-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -(phenylacetyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(azepan-1-ylcarbonyl)-N-(3-ethylbenzyl)-5- 
                 
                     
                   methylbenzamide 
                 
                     
                   methyl {3-[([(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]{3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoyl}amino)methyl]phenyl}carbamate 
                 
                     
                   5-oxo-L-prolyl-N 1 -[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-isobutyl-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   4-[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-ethylbenzyl)amino]-4-oxo-3-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}butanoic acid trifluoroacetate 
                 
                     
                   (salt) 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3- 
                 
                     
                   [methyl(methylsulfonyl)amino]benzamide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[ethyl(isopropyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (2-thienyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-{[(2- 
                 
                     
                   hydroxyethyl)(propyl)amino]sulfonyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[isopropyl(methyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-[(methylsulfonyl)amino]- 
                 
                     
                   1,3-thiazole-4-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[allyl(cyclopentyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(3- 
                 
                     
                   methylbutyl)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3-(5- 
                 
                     
                   methyl-2-thienyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (3-methoxyphenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(1- 
                 
                     
                   methylhexyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-({[1- 
                 
                     
                   (aminocarbonyl)cyclohexyl]amino}methyl)-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(2E)-hex-2- 
                 
                     
                   en-1-ylamino]methyl}propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-fluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-hydroxyisoxazole-5- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({3-[(1E)- 
                 
                     
                   hex-1-en-1-yl]benzyl}amino)methyl]propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(isopropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (2-thienyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl [3-(2-amino-2- 
                 
                     
                   oxoethoxy)phenyl]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3-bromophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(2- 
                 
                     
                   ethylhexyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3-(6- 
                 
                     
                   methoxypyridin-3-yl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3-(2,4- 
                 
                     
                   dimethoxypyrimidin-5-yl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(2-ethylbutanoyl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(4-hydroxypiperidin-1- 
                 
                     
                   yl)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-bromophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl 4-[2′- 
                 
                     
                   (aminocarbonyl)biphenyl-4-yl]-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(3-hydroxypiperidin-1- 
                 
                     
                   yl)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3-hydroxy- 
                 
                     
                   1-phenylpropyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-{[[2- 
                 
                     
                   (dimethylamino)ethyl](ethyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-methyl-4H,6H-pyrrolo[1,2- 
                 
                     
                   a][4,1]benzoxazepine-4-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (5-acetyl-2-thienyl)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-dichlorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(diisopropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(methylsulfonyl)amino]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-chlorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl [4-(2-oxopyrrolidin-1- 
                 
                     
                   yl)phenyl]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3-chloro-5-fluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-chloro-5-fluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-{[(1-methyl-1H-imidazol-4- 
                 
                     
                   yl)sulfonyl]amino}benzoate trihydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1- 
                 
                     
                   [(pentylamino)methyl]propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-fluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3-chloro-5- 
                 
                     
                   fluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[cyclohexyl(ethyl)amino]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[2-({[(2,4- 
                 
                     
                   difluorophenyl)amino]carbonyl}oxy)ethyl]amino}methyl)propyl 
                 
                     
                   3-[(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-{[(2S)-2- 
                 
                     
                   (methoxymethyl)pyrrolidin-1-yl]carbonyl}-5-methylbenzoate 
                 
                     
                   hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3-fluoro-4-methylphenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-bromophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2,8-dimethylquinoline-3- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(6- 
                 
                     
                   hydroxyhexyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(2R)-2- 
                 
                     
                   hydroxypropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 3-[(1-propylbutyl)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-{[(2-hydroxy-1,1- 
                 
                     
                   dimethylethyl)amino]sulfonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(4- 
                 
                     
                   phenylbutyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl 7-(1H-imidazol-1-yl)-5,6- 
                 
                     
                   dihydronaphthalene-2-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(acetylamino)-4- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-({[2- 
                 
                     
                   (aminosulfonyl)ethyl]amino}methyl)-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[2- 
                 
                     
                   (ethylthio)ethyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-cyclohexyl-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[benzyl(cyanomethyl)amino]methyl}-3- 
                 
                     
                   (3,5-difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(2- 
                 
                     
                   hydroxypropyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-butoxypropyl)amino]methyl}-3- 
                 
                     
                   (3,5-difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-{[2-(2- 
                 
                     
                   hydroxyethyl)piperidin-1-yl]carbonyl}-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(1-hydroxy-2- 
                 
                     
                   propylpentyl)benzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3-chloro-5- 
                 
                     
                   fluorophenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4- 
                 
                     
                   [(methylsulfonyl)amino]butanoate trifluoroacetate 
                 
                     
                   (1R,2S)-2-amino-1-({[3-(1-benzothien-2- 
                 
                     
                   yl)benzyl]amino}methyl)-3-(3,5-difluorophenyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(benzyloxy)isoxazole-5- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-1-{[(cyclopropylmethyl)amino]methyl}-3- 
                 
                     
                   (3,5-difluorophenyl)propyl N-[(benzyloxy)carbonyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate trifluoroacetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-(1H-pyrazol-1- 
                 
                     
                   yl)pentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 1-(2-furylmethyl)-5- 
                 
                     
                   oxopyrrolidine-3-carboxylate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-ethylhexanoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(5- 
                 
                     
                   hydroxypentyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]piperidine-1-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(diethylamino)carbonyl]piperidine-1-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(pentafluorophenyl)-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3-bromo-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4- 
                 
                     
                   [(methylsulfonyl)amino]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-bromophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (2-thienyl)propyl 3-[(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethoxypropyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(2- 
                 
                     
                   thienyl)propyl 3-[(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-hydroxy-4- 
                 
                     
                   (phenylsulfonyl)butanoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-dichlorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   [3-(trifluoromethoxy)phenyl]propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-ethyl-N-(3-ethylbenzyl)-N′-isopropyl-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(2-thienyl)butyl]-N-(3- 
                 
                     
                   methoxybenzyl)-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-{[(2- 
                 
                     
                   hydroxyethyl)(propyl)amino]sulfonyl}propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-isopropyl-N′,5- 
                 
                     
                   dimethylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[(methylsulfonyl)amino]- 
                 
                     
                   1,3-thiazole-4-carboxamide 
                 
                     
                   N-allyl-N′-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-cyclopentyl-N′-(3-ethylbenzyl)-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-[(3- 
                 
                     
                   methylbutyl)sulfonyl]propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-[3-(5-methyl-2-thienyl)benzyl]- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(3- 
                 
                     
                   methoxyphenyl)butyl]-N 1 -(3-methoxybenzyl)-N 3 ,N 3 - 
                 
                     
                   dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-(1-methylhexyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[1-(aminocarbonyl)cyclohexyl]-N-[(2R,3S)-3-amino-4- 
                 
                     
                   (3,5-difluorophenyl)-2-hydroxybutyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(2E)-hex-2-en-1-yl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(4-fluorophenyl)-2-hydroxybutyl]- 
                 
                     
                   N-(3-methoxybenzyl)-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-hydroxyisoxazole-5- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-{3-[(1E)-hex-1-en-1-yl]benzyl}-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-isopropyl-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(2-thienyl)butyl]-N 1 -(3- 
                 
                     
                   methoxybenzyl)-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   2(3-{2-[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-iodobenzyl)amino]-2- 
                 
                     
                   oxoethyl}phenoxy)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-bromophenyl)-2-hydroxybutyl]-N- 
                 
                     
                   (3-methoxybenzyl)-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(2-ethylhexyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(6-methoxypyridin-3-yl)benzyl]-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(2,4-dimethoxypyrimidin-5-yl)benzyl]-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(2-ethylbutanoyl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-[(4-hydroxypiperidin-1- 
                 
                     
                   yl)carbonyl]-5-methylbenzamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3-bromophenyl)-2-hydroxybutyl]- 
                 
                     
                   N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl 4-[2′- 
                 
                     
                   (aminocarbonyl)biphenyl-4-yl]-4-oxobutanoate 
                 
                     
                   1-(3-{[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-ethylbenzyl)amino]carbonyl}-5- 
                 
                     
                   methylbenzoyl)-L-prolinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-[(3-hydroxypiperidin-1- 
                 
                     
                   yl)carbonyl]-5-methylbenzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-hydroxy-1-phenylpropyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-[2-(dimethylamino)ethyl]-N′-ethyl-N-(3- 
                 
                     
                   ethylbenzyl)-5-methylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-methyl-4H,6H-pyrrolo[1,2- 
                 
                     
                   a][4,1]benzoxazepine-4-carboxamide 
                 
                     
                   2-(5-acetyl-2-thienyl)-N-[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N-(3-ethylbenzyl)acetamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-dichlorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene- 
                 
                     
                   1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′,N′-diisopropyl-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3- 
                 
                     
                   [(methylsulfonyl)amino]benzamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(4-chlorophenyl)-2-hydroxybutyl]- 
                 
                     
                   N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-iodobenzyl)-2-[4-(2-oxopyrrolidin-1- 
                 
                     
                   yl)phenyl]acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-chloro-5-fluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-[(dipropylamino)sulfonyl]-N-(3- 
                 
                     
                   methoxybenzyl)propanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3-chloro-5-fluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-{[(1-methyl-1H-imidazol-4- 
                 
                     
                   yl)sulfonyl]amino}benzamide trihydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-pentyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(4-fluorophenyl)-2-hydroxybutyl]- 
                 
                     
                   N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-chloro-5-fluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-cyclohexyl-N′-ethyl-N-(3-ethylbenzyl)-5- 
                 
                     
                   methylisophthalamide 
                 
                     
                   2-([(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]{3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoyl}amino)ethyl (2,4-difluorophenyl)carbamate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-{[(2S)-2- 
                 
                     
                   (methoxymethyl)pyrrolidin-1-yl]carbonyl}-5-methylbenzamide 
                 
                     
                   hydrochloride 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3-fluoro-4-methylphenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene- 
                 
                     
                   1,3,5-tricarboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3-bromophenyl)-2-hydroxybutyl]- 
                 
                     
                   N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2,8-dimethylquinoline-3- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(6-hydroxyhexyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(2R)-2-hydroxypropyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-(3- 
                 
                     
                   methoxybenzyl)-3-[(1-propylbutyl)sulfonyl]propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-{[(2-hydroxy-1,1- 
                 
                     
                   dimethylethyl)amino]sulfonyl}benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-(4-phenylbutyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-7-(1H-imidazol-1-yl)-N-(3-iodobenzyl)-5,6- 
                 
                     
                   dihydronaphthalene-2-carboxamide 
                 
                     
                   3-(acetylamino)-N-[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N-(3-ethylbenzyl)-4- 
                 
                     
                   methylbenzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[2-(aminosulfonyl)ethyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[2-(ethylthio)ethyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-cyclohexyl-2-hydroxybutyl]-N-(3- 
                 
                     
                   methoxybenzyl)-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(2-hydroxypropyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-butoxypropyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-{[2-(2- 
                 
                     
                   hydroxyethyl)piperidin-1-yl]carbonyl}-5-methylbenzamide 
                 
                     
                   methyl N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-{3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoyl}-β-alaninate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(1-hydroxy-2- 
                 
                     
                   propylpentyl)benzamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3-chloro-5-fluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4- 
                 
                     
                   [(methylsulfonyl)amino]butanamide trifluoroacetate (salt) 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(1-benzothien-2-yl)benzyl]-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(benzyloxy)-N-(3-ethylbenzyl)isoxazole-5- 
                 
                     
                   carboxamide 
                 
                     
                   1-(3-{[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-ethylbenzyl)amino]carbonyl}-5- 
                 
                     
                   methylbenzoyl)-D-prolinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-(1H-pyrazol-1- 
                 
                     
                   yl)pentanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-1-(2-furylmethyl)-5- 
                 
                     
                   oxopyrrolidine-3-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2-ethyl-N- 
                 
                     
                   (3-methoxybenzyl)hexanamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(5-hydroxypentyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylpiperidine- 
                 
                     
                   1,3-dicarboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 3 ,N 3 -diethyl-N 1 -(3-methoxybenzyl)piperidine- 
                 
                     
                   1,3-dicarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4- 
                 
                     
                   (pentafluorophenyl)butyl]-5-bromo-N′,N′-dipropyl-N-[3- 
                 
                     
                   (trifluoromethyl)benzyl]isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4- 
                 
                     
                   [(methylsulfonyl)amino]benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-bromophenyl)-2-hydroxybutyl]-3- 
                 
                     
                   [(dipropylamino)sulfonyl]-N-(3-methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(2-thienyl)butyl]-3- 
                 
                     
                   [(dipropylamino)sulfonyl]-N-(3-methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethoxypropyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(2-thienyl)butyl]-N- 
                 
                     
                   benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-hydroxy-4- 
                 
                     
                   (phenylsulfonyl)butanamide hydrochloride 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-dichlorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethoxy)phenyl]butyl}-N 1 -(3-methoxybenzyl)-N 3 ,N 3 - 
                 
                     
                   dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3,3- 
                 
                     
                   dimethylbutyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3- 
                 
                     
                   bromophenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-chloro-5-fluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(1,3- 
                 
                     
                   diphenylpropyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1S)-1- 
                 
                     
                   (hydroxymethyl)propyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(3S)-2- 
                 
                     
                   oxoazepan-3-yl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-(cyclohexylamino)-5- 
                 
                     
                   oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (3-methylphenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(2- 
                 
                     
                   propylpentyl)sulfonyl]-β-alaninate trifluoroacetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(1,3-thiazol-2-yl)benzoate 
                 
                     
                   dihydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(2-furyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({3- 
                 
                     
                   [methyl(phenyl)amino]propyl}amino)methyl]propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (4-methylphenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-oxo-1-(2- 
                 
                     
                   thienylmethyl)pyrrolidine-3-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-[(butylthio)methyl]-5- 
                 
                     
                   methyl-2-furoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-{[(2- 
                 
                     
                   hydroxyethyl)amino]sulfonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[3- 
                 
                     
                   (trifluoromethyl)benzoyl]glycinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methylcyclohexyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(2-oxo-1,3-oxazolidin-3- 
                 
                     
                   yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(1H-pyrrol-1-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(6-methoxy- 
                 
                     
                   1,2,3,4-tetrahydronaphthalen-1-yl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 1,3,4,5- 
                 
                     
                   tetrahydrothiopyrano[4,3-b]indole-8-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-oxo-4-{[2- 
                 
                     
                   (trifluoromethyl)phenyl]amino}butanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-bromophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4,5-dimethyl-2-(1H-pyrrol-1- 
                 
                     
                   yl)thiophene-3-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(2,3- 
                 
                     
                   dihydroxypropyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(2S)-2- 
                 
                     
                   hydroxypropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1R)-1- 
                 
                     
                   methylpropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-chloro-4- 
                 
                     
                   (methylsulfonyl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(2- 
                 
                     
                   hydroxyethyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (3-methoxyphenyl)propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {methyl[(trifluoromethyl)sulfonyl]amino}benzoate 
                 
                     
                   hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-hydroxy-6-(1-hydroxy-2,2- 
                 
                     
                   dimethylpropyl)pyridine-2-carboxylate 
                 
                     
                   (1R,2S)-2-amino-1-{[(1,3- 
                 
                     
                   dicyclohexylpropyl)amino]methyl}-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2,2′-bithiophene-5- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(1H-imidazol-1- 
                 
                     
                   yl)butanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2,3-dihydroxy-4-[(4- 
                 
                     
                   methoxyphenyl)amino]-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(4- 
                 
                     
                   hydroxyphenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   [3-(trifluoromethyl)phenyl]propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(2- 
                 
                     
                   thienyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-1-({[2-(aminocarbonyl)-1H-indol-6- 
                 
                     
                   yl]amino}methyl)-3-(3,5-difluorophenyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3- 
                 
                     
                   bromophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[4- 
                 
                     
                   (trifluoromethyl)benzoyl]glycinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-(1-oxo-1,3-dihydro-2H- 
                 
                     
                   isoindol-2-yl)butanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(3,4- 
                 
                     
                   dichlorobenzoyl)glycinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-chloro-4- 
                 
                     
                   (methylsulfonyl)thiophene-2-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(1- 
                 
                     
                   ethylpropyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({[(5R)-3- 
                 
                     
                   ethyl-2-oxo-1,3-oxazolidin-5-yl]methyl}amino)methyl]propyl 
                 
                     
                   3-[(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-methyl-7- 
                 
                     
                   (trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl N-[(methylthio)acetyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(2,3- 
                 
                     
                   dimethylcyclohexyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4,5-dimethoxy-1- 
                 
                     
                   benzothiophene-2-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-[3-fluoro-5-(trifluoromethyl)phenyl]- 
                 
                     
                   1-{[(3-methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({[(5S)-3- 
                 
                     
                   ethyl-2-oxo-1,3-oxazolidin-5-yl]methyl}amino)methyl]propyl 
                 
                     
                   3-[(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(1,3-benzodioxol-5-yl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(3,5-dioxo-1,2,4- 
                 
                     
                   triazolidin-4-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-hydroxy-3-[(3- 
                 
                     
                   methoxyphenyl)sulfonyl]propanoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(2- 
                 
                     
                   methylcyclohexyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(2-{4-[(3- 
                 
                     
                   chlorobenzyl)oxy]phenyl}ethyl)amino]methyl}-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-hydroxy-4-oxo-4-(3- 
                 
                     
                   thienyl)butanoate 
                 
                     
                   (1R,2S)-2-amino-3-[3-(benzyloxy)-5-fluorophenyl]-1- 
                 
                     
                   {[(3-methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-hydroxy-4-oxo-4-[3- 
                 
                     
                   (trifluoromethyl)phenyl]butanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methylbutyl)amino]methyl}-3-[3- 
                 
                     
                   (trifluoromethoxy)phenyl]propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1- 
                 
                     
                   (hydroxymethyl)-3-(methylthio)propyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-(1H-1,2,3-benzotriazol-1- 
                 
                     
                   yl)hexanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-fluoro-4-methylphenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(4,4-dimethyl-2,5- 
                 
                     
                   dioxoimidazolidin-1-yl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4- 
                 
                     
                   {[(trifluoromethyl)sulfonyl]amino}butanoate trifluoroacetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (5-methyl-1,3-dioxo-1,3- 
                 
                     
                   dihydro-2H-isoindol-2-yl)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   hydroxypropyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1- 
                 
                     
                   (hydroxymethyl)propyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3,5- 
                 
                     
                   dichlorophenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 3-{[(2- 
                 
                     
                   hydroxyethyl)(propyl)amino]sulfonyl}propanoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-(benzylthio)nicotinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 1H-pyrazole-5-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 6-chloro-3-methyl-2-oxo-2,3- 
                 
                     
                   dihydro-1,3-benzoxazole-5-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 1H-benzimidazole-2- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-cyclohexyl-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 6-hydroxy-4,7-dimethoxy-1- 
                 
                     
                   benzofuran-5-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(4- 
                 
                     
                   methylcyclohexyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl[1,2,4]triazolo[4,3- 
                 
                     
                   a]pyridine-6-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-hydroxy-4-oxo-4-(2- 
                 
                     
                   thienyl)butanoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3,5- 
                 
                     
                   dichlorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(2-hydroxy-5- 
                 
                     
                   methylphenyl)-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-phenoxybenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4- 
                 
                     
                   [(aminocarbonyl)amino]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1S)-1- 
                 
                     
                   (hydroxymethyl)-3-(methylthio)propyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 7-hydroxy-4-oxochromane-2- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1S)-1- 
                 
                     
                   (hydroxymethyl)-3-methylbutyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1R)-1- 
                 
                     
                   (hydroxymethyl)propyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(1-methyl-3- 
                 
                     
                   phenylpropyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3,3-dimethylbutyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3-bromophenyl)-2-hydroxybutyl]- 
                 
                     
                   N 1 -benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-chloro-5-fluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-(3-methylbutyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(1,3-diphenylpropyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(1S)-1-(hydroxymethyl)propyl]-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-[(3S)-2-oxoazepan-3-yl]-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-cyclohexyl-N-(3-ethylbenzyl)pentanediamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(3-methylphenyl)butyl]- 
                 
                     
                   N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 3 -[(2- 
                 
                     
                   propylpentyl)sulfonyl]-β-alaninamide trifluoroacetate (salt) 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(1,3-thiazol-2- 
                 
                     
                   yl)benzamide dihydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(2-furyl)-2-hydroxybutyl]-N-(3- 
                 
                     
                   methoxybenzyl)-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-{3-[methyl(phenyl)amino]propyl}- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(4-methylphenyl)butyl]- 
                 
                     
                   N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-oxo-1-(2- 
                 
                     
                   thienylmethyl)pyrrolidine-3-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-[(butylthio)methyl]-N-(3-ethylbenzyl)-5- 
                 
                     
                   methyl-2-furamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-{[(2- 
                 
                     
                   hydroxyethyl)amino]sulfonyl}benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-(3-methylcyclohexyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(2-oxo-1,3-oxazolidin-3- 
                 
                     
                   yl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(1H-pyrrol-1-yl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(6-methoxy-1,2,3,4-tetrahydronaphthalen-1- 
                 
                     
                   yl)-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-1,3,4,5- 
                 
                     
                   tetrahydrothiopyrano[4,3-b]indole-8-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-[2- 
                 
                     
                   (trifluoromethyl)phenyl]succinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-bromophenyl)-2-hydroxybutyl]-5- 
                 
                     
                   methyl-N-(3-methylbutyl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4,5-dimethyl-2-(1H-pyrrol-1- 
                 
                     
                   yl)thiophene-3-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(2,3-dihydroxypropyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(2S)-2-hydroxypropyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-[(1R)-1-methylpropyl]-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-chloro-N-(3-ethylbenzyl)-4- 
                 
                     
                   (methylsulfonyl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(2-hydroxyethyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(3-methoxyphenyl)butyl]- 
                 
                     
                   3-[(dipropylamino)sulfonyl]-N-(3-methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3- 
                 
                     
                   {methyl[(trifluoromethyl)sulfonyl]amino}benzamide 
                 
                     
                   hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-hydroxy-6-(1-hydroxy-2,2- 
                 
                     
                   dimethylpropyl)pyridine-2-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(1,3-dicyclohexylpropyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2,2′-bithiophene-5- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(1H-imidazol-1- 
                 
                     
                   yl)butanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2,3-dihydroxy-N′-(4- 
                 
                     
                   methoxyphenyl)succinamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(4-hydroxyphenyl)butyl]- 
                 
                     
                   N-benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethyl)phenyl]butyl}-N 1 -(3-methoxybenzyl)-N 3 ,N 3 - 
                 
                     
                   dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(2-thienyl)butyl]-N 1 - 
                 
                     
                   benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[2-(aminocarbonyl)-1H-indol-6-yl]-N-[(2R,3S)-3-amino- 
                 
                     
                   4-(3,5-difluorophenyl)-2-hydroxybutyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-bromophenyl)-2-hydroxybutyl]-N- 
                 
                     
                   benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(1-oxo-1,3-dihydro-2H- 
                 
                     
                   isoindol-2-yl)butanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-chloro-N-(3-ethylbenzyl)-4- 
                 
                     
                   (methylsulfonyl)thiophene-2-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(1-ethylpropyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-{[(5R)-3-ethyl-2-oxo-1,3-oxazolidin-5- 
                 
                     
                   yl]methyl}-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-methyl-7- 
                 
                     
                   (trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N 1 -(3- 
                 
                     
                   methoxybenzyl)-N 2 -[(methylthio)acetyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(2,3-dimethylcyclohexyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4,5-dimethoxy-1- 
                 
                     
                   benzothiophene-2-carboxamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-4-[3-fluoro-5- 
                 
                     
                   (trifluoromethyl)phenyl]-2-hydroxybutyl}-N 1 -(3-methylbutyl)- 
                 
                     
                   N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-{[(5S)-3-ethyl-2-oxo-1,3-oxazolidin-5- 
                 
                     
                   yl]methyl}-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(1,3-benzodioxol-5-yl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene- 
                 
                     
                   1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(3,5-dioxo-1,2,4-triazolidin-4-yl)-N-(3- 
                 
                     
                   ethylbenzyl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2-hydroxy- 
                 
                     
                   N-(3-methoxybenzyl)-3-[(3-methoxyphenyl)sulfonyl]propanamide 
                 
                     
                   hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-(2-methylcyclohexyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(2-{4-[(3-chlorobenzyl)oxy]phenyl}ethyl)-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-hydroxy-4-oxo-4-(3- 
                 
                     
                   thienyl)butanamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-4-[3-(benzyloxy)-5-fluorophenyl]-2- 
                 
                     
                   hydroxybutyl}-N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene- 
                 
                     
                   1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-hydroxy-4-oxo-4-[3- 
                 
                     
                   (trifluoromethyl)phenyl]butanamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethoxy)phenyl]butyl}-N 1 -(3-methylbutyl)-N 3 ,N 3 - 
                 
                     
                   dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(hydroxymethyl)-3-(methylthio)propyl]-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-(1H-1,2,3-benzotriazol-1-yl)-N-(3- 
                 
                     
                   ethylbenzyl)hexanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3-fluoro-4-methylphenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(4,4-dimethyl-2,5-dioxoimidazolidin-1-yl)-N- 
                 
                     
                   (3-ethylbenzyl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4- 
                 
                     
                   {[(trifluoromethyl)sulfonyl]amino}butanamide 
                 
                     
                   trifluoroacetate (salt) 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(5-methyl-1,3-dioxo-1,3- 
                 
                     
                   dihydro-2H-isoindol-2-yl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-hydroxypropyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[1-(hydroxymethyl)propyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-dichlorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-3-{[(2- 
                 
                     
                   hydroxyethyl)(propyl)amino]sulfonyl}-N-(3- 
                 
                     
                   methoxybenzyl)propanamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-(benzylthio)-N-(3-ethylbenzyl)nicotinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-1H-pyrazole-5-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-6-chloro-N-(3-ethylbenzyl)-3-methyl-2-oxo-2,3- 
                 
                     
                   dihydro-1,3-benzoxazole-5-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-1H-benzimidazole-2- 
                 
                     
                   carboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-cyclohexyl-2-hydroxybutyl]-N 1 -(3- 
                 
                     
                   methoxybenzyl)-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-6-hydroxy-4,7-dimethoxy-1- 
                 
                     
                   benzofuran-5-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-(4-methylcyclohexyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)[1,2,4]triazolo[4,3- 
                 
                     
                   a]pyridine-6-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-hydroxy-4-oxo-4-(2- 
                 
                     
                   thienyl)butanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-dichlorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(2-hydroxy-5- 
                 
                     
                   methylphenyl)-4-oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-phenoxybenzamide 
                 
                     
                   4-[(aminocarbonyl)amino]-N-[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N-(3-ethylbenzyl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(1S)-1-(hydroxymethyl)-3- 
                 
                     
                   (methylthio)propyl]-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-7-hydroxy-4-oxochromane-2- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(1S)-1-(hydroxymethyl)-3-methylbutyl]-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(1R)-1-(hydroxymethyl)propyl]-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-(1-methyl-3-phenylpropyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-(2,3-dihydro-1-benzofuran- 
                 
                     
                   5-yl)-1,3-thiazole-4-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-[3-(benzyloxy)phenyl]-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-chlorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-oxo-3- 
                 
                     
                   (pentylamino)propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(trifluoromethoxy)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-fluoro-4-methylphenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-chloro-5-fluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(4,4-dimethyl-2,5- 
                 
                     
                   dioxoimidazolidin-1-yl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-{[4- 
                 
                     
                   (acetylamino)phenyl]amino}-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(1-cyanoethyl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-oxo-4-[(5-phenyl-1,3,4- 
                 
                     
                   thiadiazol-2-yl)amino]butanoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-[3- 
                 
                     
                   (trifluoromethoxy)phenyl]propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[2-(2-oxo-2- 
                 
                     
                   pyrrolidin-1-ylethoxy)phenyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-chlorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (1,1-dioxidotetrahydro-2- 
                 
                     
                   thienyl)acetate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(4- 
                 
                     
                   chlorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-hex-1-yn-1-ylnicotinate 
                 
                     
                   (1R,2S)-2-amino-3-(3-bromophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-methoxyisoxazole-5- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2,3-dimethyl-1H-indole-7- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(3-chlorophenyl)-2- 
                 
                     
                   hydroxy-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-fluoro-4-methoxyphenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (1-methyl-1H-indol-3- 
                 
                     
                   yl)(oxo)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3-fluoro-4-methylphenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (4-methylphenyl)propyl 3-[(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3-fluoro-4- 
                 
                     
                   methylphenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [5-(4-methylphenyl)-2H- 
                 
                     
                   tetrazol-2-yl]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-dichlorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methylbutyl)amino]methyl}-3-(2- 
                 
                     
                   thienyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-methyl-3-phenylisoxazole- 
                 
                     
                   4-carboxylate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(4- 
                 
                     
                   fluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(methylsulfonyl)acetyl]- 
                 
                     
                   N-pentylglycinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(4- 
                 
                     
                   methoxybenzoyl)glycinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(2,6- 
                 
                     
                   difluorobenzoyl)glycinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(1H-indol-3-yl)-4- 
                 
                     
                   oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-[(5-benzyl-1,3,4- 
                 
                     
                   thiadiazol-2-yl)amino]-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(3-fluoro-4- 
                 
                     
                   methoxyphenyl)-4-oxobutanoate 
                 
                     
                   ethyl 4-{[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2-({3- 
                 
                     
                   [(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoyl}oxy)butyl]amino}piperidine-1-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(2-fluorobenzoyl)-1H- 
                 
                     
                   pyrrole-2-carboxylate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(4- 
                 
                     
                   chlorophenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methylbutyl)amino]methyl}-3-[3- 
                 
                     
                   (trifluoromethyl)phenyl]propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-hydroxyphenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (4-morpholin-4- 
                 
                     
                   ylphenyl)acetate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   [3-(trifluoromethoxy)phenyl]propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-[benzyl(1- 
                 
                     
                   cyclopropylethyl)amino]-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(2,5-dimethylbenzoyl)-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-[(2-methoxy-5- 
                 
                     
                   methylphenyl)amino]-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (3-hydroxyphenyl)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-[hydroxy(2- 
                 
                     
                   methylphenyl)methyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-(ethylthio)nicotinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-[4-(2-furoyl)piperazin-1- 
                 
                     
                   yl]-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3-fluoro-4- 
                 
                     
                   methylphenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-oxoisoindoline-1- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(ethylthio)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl thieno[2,3-b]quinoline-2- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(4-methyl-1,3-oxazol-2- 
                 
                     
                   yl)benzoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(4- 
                 
                     
                   fluorophenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-[2- 
                 
                     
                   furoyl(methyl)amino]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-hydroxy-4-(3- 
                 
                     
                   methoxyphenyl)-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-1-[(cycloheptylamino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methylbutyl)amino]methyl}-3-(4- 
                 
                     
                   methylphenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-fluoro-5-hydroxyphenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-hydroxy-1H-indole-2- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2,2-dimethylchromane-8- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 6-benzylpyrazine-2- 
                 
                     
                   carboxylate 4-oxide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl {2- 
                 
                     
                   [(dipropylamino)sulfonyl]ethyl}carbamate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1- 
                 
                     
                   (hydroxymethyl)-2-methylpropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3-chloro-5- 
                 
                     
                   fluorophenyl)propyl 3-[(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(4-methoxyphenyl)-4- 
                 
                     
                   oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(4- 
                 
                     
                   hydroxyphenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-methyl-4-oxo-3,4- 
                 
                     
                   dihydrophthalazine-1-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3,4-dihydro-2H-1,5- 
                 
                     
                   benzodioxepine-7-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [4-(2,5-dioxopyrrolidin-1- 
                 
                     
                   yl)phenoxy]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(2-furyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-methyl-4-oxo-3,4- 
                 
                     
                   dihydrothieno[2,3-d]pyrimidine-6-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(1,3-benzodioxol-5-yl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-chloro-5-fluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 5-(dipropylamino)-5- 
                 
                     
                   oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 6-fluoro-2-hydroxyquinoline- 
                 
                     
                   4-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-oxo-4-(2-thienyl)butanoate 
                 
                     
                   (1R,2R)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (phenylthio)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1R)-1- 
                 
                     
                   (hydroxymethyl)-2-methylpropyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1R,2S)-1- 
                 
                     
                   (hydroxymethyl)-2-methylbutyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-(phenoxymethyl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-[(2,4- 
                 
                     
                   difluorophenyl)amino]-5-oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-[(4,6-dimethylpyrimidin-2- 
                 
                     
                   yl)amino]-5-oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(3-methoxybenzoyl)-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-[3-(benzyloxy)phenyl]-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(3,4-dichlorophenyl)-4- 
                 
                     
                   oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   [4-(methoxycarbonyl)phenyl]propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-[(4-acetylphenyl)amino]-5- 
                 
                     
                   oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-3-[4-(benzyloxy)phenyl]-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2R)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (phenylthio)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-({2- 
                 
                     
                   [(methylamino)carbonyl]phenyl}thio)propanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 3-[(1-propylbutyl)thio]propanoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-[(4-ethoxyphenyl)amino]-4- 
                 
                     
                   oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-[3-(benzyloxy)-5-fluorophenyl]-1- 
                 
                     
                   {[(3-methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[2-({[(3- 
                 
                     
                   methoxyphenyl)amino]carbonyl}oxy)ethyl]amino}methyl)propyl 
                 
                     
                   3-[(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-(2,3-dihydro-1-benzofuran-5-yl)-N-(3- 
                 
                     
                   ethylbenzyl)-1,3-thiazole-4-carboxamide 
                 
                     
                   N-{(2R,3S)-3-amino-4-[3-(benzyloxy)phenyl]-2- 
                 
                     
                   hydroxybutyl}-N-(3-methoxybenzyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(4-chlorophenyl)-2-hydroxybutyl]- 
                 
                     
                   3-[(dipropylamino)sulfonyl]-N-(3-methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-pentylmalonamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3- 
                 
                     
                   (trifluoromethoxy)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-fluoro-4-methylphenyl)-2- 
                 
                     
                   hydroxybutyl]-3-[(dipropylamino)sulfonyl]-N-(3- 
                 
                     
                   methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-chloro-5-fluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-[(dipropylamino)sulfonyl]-N-(3- 
                 
                     
                   methylbutyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(4,4-dimethyl-2,5-dioxoimidazolidin-1-yl)-N- 
                 
                     
                   (3-ethylbenzyl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanamide 
                 
                     
                   N′-[4-(acetylamino)phenyl]-N-[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N-(3-ethylbenzyl)succinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(1-cyanoethyl)-N-(3-ethylbenzyl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-(5-phenyl-1,3,4- 
                 
                     
                   thiadiazol-2-yl)succinamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethoxy)phenyl]butyl}-N 1 -benzyl-N 3 ,N 3 - 
                 
                     
                   dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-[2-(2-oxo-2-pyrrolidin-1- 
                 
                     
                   ylethoxy)phenyl]-N′,N′-dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(4-chlorophenyl)-2-hydroxybutyl]- 
                 
                     
                   N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-(1,1-dioxidotetrahydro-2-thienyl)-N-(3- 
                 
                     
                   ethylbenzyl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(4-chlorophenyl)-2-hydroxybutyl]- 
                 
                     
                   N-benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-hex-1-yn-1-ylnicotinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-bromophenyl)-2-hydroxybutyl]-3- 
                 
                     
                   [(dipropylamino)sulfonyl]-N-(3-methylbutyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-methoxyisoxazole-5- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2,3-dimethyl-1H-indole-7- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(3-chlorophenyl)-N-(3-ethylbenzyl)-2- 
                 
                     
                   hydroxy-4-oxobutanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3-fluoro-4-methoxyphenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene- 
                 
                     
                   1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(1-methyl-1H-indol-3-yl)- 
                 
                     
                   2-oxoacetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-fluoro-4-methylphenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-(3-methylbutyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(4-methylphenyl)butyl]- 
                 
                     
                   3-[(dipropylamino)sulfonyl]-N-(3-methoxybenzyl)propanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3-fluoro-4-methylphenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[5-(4-methylphenyl)-2H- 
                 
                     
                   tetrazol-2-yl]acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-dichlorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-[(dipropylamino)sulfonyl]-N-(3- 
                 
                     
                   methoxybenzyl)propanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(2-thienyl)butyl]-N 1 -(3- 
                 
                     
                   methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-methyl-3-phenylisoxazole- 
                 
                     
                   4-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(4-fluorophenyl)-2-hydroxybutyl]- 
                 
                     
                   N-benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -[(methylsulfonyl)acetyl]- 
                 
                     
                   N 2 -pentylglycinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(1H-indol-3-yl)-4- 
                 
                     
                   oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-(5-benzyl-1,3,4-thiadiazol-2-yl)-N-(3- 
                 
                     
                   ethylbenzyl)succinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(3-fluoro-4- 
                 
                     
                   methoxyphenyl)-4-oxobutanamide 
                 
                     
                   ethyl 4-([(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]{3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoyl}amino)piperidine-1-carboxylate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(2-fluorobenzoyl)-1H- 
                 
                     
                   pyrrole-2-carboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(4-chlorophenyl)-2-hydroxybutyl]- 
                 
                     
                   N 1 -benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethyl)phenyl]butyl}-N 1 -(3-methylbutyl)-N 3 ,N 3 - 
                 
                     
                   dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(4-hydroxyphenyl)butyl]- 
                 
                     
                   5-methyl-N-(3-methylbutyl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(4-morpholin-4- 
                 
                     
                   ylphenyl)acetamide 
                 
                     
                   N-{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethoxy)phenyl]butyl}-3-[(dipropylamino)sulfonyl]- 
                 
                     
                   N-(3-methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-benzyl-N′-(1-cyclopropylethyl)-N-(3- 
                 
                     
                   ethylbenzyl)succinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(2,5-dimethylbenzoyl)-N-(3-methoxybenzyl)-5- 
                 
                     
                   methylbenzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-(2-methoxy-5- 
                 
                     
                   methylphenyl)succinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(3-hydroxyphenyl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-[hydroxy(2-methylphenyl)methyl]-N-(3- 
                 
                     
                   methoxybenzyl)-5-methylbenzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-(ethylthio)nicotinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-[4-(2-furoyl)piperazin-1- 
                 
                     
                   yl]-4-oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-fluoro-4-methylphenyl)-2- 
                 
                     
                   hydroxybutyl]-N-benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-oxoisoindoline-1- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(ethylthio)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)thieno[2,3-b]quinoline-2- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(4-methyl-1,3-oxazol-2- 
                 
                     
                   yl)benzamide hydrochloride 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(4-fluorophenyl)-2-hydroxybutyl]- 
                 
                     
                   N 1 -benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-(2-{[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-ethylbenzyl)amino]carbonyl}phenyl)-N-methyl- 
                 
                     
                   2-furamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-hydroxy-4-(3- 
                 
                     
                   methoxyphenyl)-4-oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-cycloheptyl-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(4-methylphenyl)butyl]- 
                 
                     
                   N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-fluoro-5-hydroxyphenyl)-2- 
                 
                     
                   hydroxybutyl]-3-[(dipropylamino)sulfonyl]-N-(3- 
                 
                     
                   methoxybenzyl)propanamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-hydroxy-1H-indole-2- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2,2-dimethylchromane-8- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-6-benzyl-N-(3-ethylbenzyl)pyrazine-2- 
                 
                     
                   carboxamide 4-oxide 
                 
                     
                   2-({[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-methoxybenzyl)amino]carbonyl}amino)-N,N- 
                 
                     
                   dipropylethanesulfonamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(1R)-1-(hydroxymethyl)-2-methylpropyl]-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-chloro-5-fluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-benzyl-3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(4-methoxyphenyl)-4- 
                 
                     
                   oxobutanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(4- 
                 
                     
                   hydroxyphenyl)butyl]-N 1 -benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-methyl-4-oxo-3,4- 
                 
                     
                   dihydrophthalazine-1-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3,4-dihydro-2H-1,5- 
                 
                     
                   benzodioxepine-7-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-[4-(2,5-dioxopyrrolidin-1-yl)phenoxy]-N-(3- 
                 
                     
                   ethylbenzyl)acetamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(2-furyl)-2-hydroxybutyl]-N 1 -(3- 
                 
                     
                   methoxybenzyl)-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-methyl-4-oxo-3,4- 
                 
                     
                   dihydrothieno[2,3-d]pyrimidine-6-carboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(1,3-benzodioxol-5-yl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-chloro-5-fluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-methoxybenzyl)-N′,N′- 
                 
                     
                   dipropylpentanediamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-6-fluoro-2-hydroxyquinoline- 
                 
                     
                   4-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-oxo-4-(2- 
                 
                     
                   thienyl)butanamide 
                 
                     
                   N 3 -{[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-methoxybenzyl)amino]carbonyl}-N 1 ,N 1 -dipropyl- 
                 
                     
                   β-alaninamide 
                 
                     
                   N 1 -[(2R,3R)-3-amino-2-hydroxy-4-(phenylthio)butyl]-N 1 - 
                 
                     
                   (3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(1R)-1-(hydroxymethyl)-2-methylpropyl]-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(1R,2S)-1-(hydroxymethyl)-2-methylbutyl]-5- 
                 
                     
                   methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(phenoxymethyl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-(2,4-difluorophenyl)-N-(3- 
                 
                     
                   ethylbenzyl)pentanediamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-(4,6-dimethylpyrimidin-2-yl)-N-(3- 
                 
                     
                   ethylbenzyl)pentanediamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(3-methoxybenzoyl)-N-(3-methoxybenzyl)-5- 
                 
                     
                   methylbenzamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-4-[3-(benzyloxy)phenyl]-2- 
                 
                     
                   hydroxybutyl}-N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene- 
                 
                     
                   1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(3,4-dichlorophenyl)-N-(3-ethylbenzyl)-4- 
                 
                     
                   oxobutanamide 
                 
                     
                   methyl 4-{(2S,3R)-2-amino-4-[{3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoyl}(3- 
                 
                     
                   methoxybenzyl)amino]-3-hydroxybutyl}benzoate 
                 
                     
                   N′-(4-acetylphenyl)-N-[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N-(3- 
                 
                     
                   ethylbenzyl)pentanediamide 
                 
                     
                   N-{(2R,3S)-3-amino-4-[4-(benzyloxy)phenyl]-2- 
                 
                     
                   hydroxybutyl}-N-(3-methoxybenzyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3R)-3-amino-2-hydroxy-4-(phenylthio)butyl]-N-(3- 
                 
                     
                   methoxybenzyl)-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   2-({3-[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-ethylbenzyl)amino]-3-oxopropyl}thio)-N- 
                 
                     
                   methylbenzamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-(3- 
                 
                     
                   methoxybenzyl)-3-[(1-propylbutyl)thio]propanamide 
                 
                     
                   hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-(4-ethoxyphenyl)-N-(3- 
                 
                     
                   ethylbenzyl)succinamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-4-[3-(benzyloxy)-5-fluorophenyl]-2- 
                 
                     
                   hydroxybutyl}-N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   2-([(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]{3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoyl}amino)ethyl (3-methoxyphenyl)carbamate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(benzyloxy)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1S)-2- 
                 
                     
                   hydroxy-1-methylethyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(pentafluorophenyl)-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(4-hydroxyphenyl)-4- 
                 
                     
                   oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   [3-(trifluoromethyl)phenyl]propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(piperidin-3- 
                 
                     
                   ylsulfonyl)benzoate dihydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 6-chloro-4-hydroxyquinoline- 
                 
                     
                   2-carboxylate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (2-thienyl)propyl 5-(dipropylamino)-5-oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-4- 
                 
                     
                   methylpentyl 3-[(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (6-oxo-3-phenylpyridazin- 
                 
                     
                   1(6H)-yl)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-{4- 
                 
                     
                   [(methylsulfonyl)amino]phenyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-fluoro-3-methylphenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(4- 
                 
                     
                   methylphenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl 3-(2-chlorophenoxy)propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-fluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(4-chlorobenzoyl)-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-[3-(benzyloxy)-5-fluorophenyl]-1- 
                 
                     
                   {[(3-methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(4-methylphenyl)-4- 
                 
                     
                   oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-oxo-4-{[3- 
                 
                     
                   (trifluoromethyl)phenyl]amino}butanoate 
                 
                     
                   (1R,2S)-2-amino-3-(1,3-benzodioxol-5-yl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (5-pyridin-2-yl-2H-tetrazol- 
                 
                     
                   2-yl)acetate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (3-methylphenyl)propyl 3-[(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl isoxazole-5-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (3,5- 
                 
                     
                   dimethoxyphenoxy)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(2,5-dimethyl-1H-pyrrol-1- 
                 
                     
                   yl)-3-hydroxybenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-bromophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 5-(dipropylamino)-5- 
                 
                     
                   oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-{[5-(cyclopentylmethyl)- 
                 
                     
                   1,3,4-thiadiazol-2-yl]amino}-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-[3- 
                 
                     
                   (trifluoromethyl)phenyl]propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (3-oxo-1,2-benzisothiazol- 
                 
                     
                   2(3H)-yl)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-methyl-5- 
                 
                     
                   (pyrrolidin-1-ylcarbonyl)-1H-pyrrol-3-yl]amino}methyl)propyl 
                 
                     
                   3-[(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(3,4-difluorophenyl)-4- 
                 
                     
                   oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(2-naphthyl)-4- 
                 
                     
                   oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4,6-diethoxypyridine-2- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(5-methyl-1H-pyrrol-2-yl)- 
                 
                     
                   4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-({[2- 
                 
                     
                   (methylamino)ethyl]amino}sulfonyl)benzoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-methyl-5-(4- 
                 
                     
                   methylbenzoyl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(1,3-benzodioxol-5-yl)-1- 
                 
                     
                   [(benzylamino)methyl]propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(piperazin-1- 
                 
                     
                   ylsulfonyl)benzoate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-1-[({2-[4- 
                 
                     
                   (aminosulfonyl)phenyl]ethyl}amino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[2-hydroxy- 
                 
                     
                   1-(hydroxymethyl)ethyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-fluoro-3-methylphenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(3-oxo-2,1-benzisothiazol- 
                 
                     
                   1(3H)-yl)propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2,6-dihydroxypyrimidin-4- 
                 
                     
                   yl)acetate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   [3-(trifluoromethyl)phenyl]propyl 5-(dipropylamino)-5- 
                 
                     
                   oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(4- 
                 
                     
                   hydroxyphenyl)propyl 3-[(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(3,4-difluorophenyl)-2- 
                 
                     
                   methyl-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-oxo-5-[(2-pyridin-2- 
                 
                     
                   ylethyl)amino]pentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [2-(4-fluorophenyl)-1,3- 
                 
                     
                   benzoxazol-5-yl]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(anilinocarbonyl)glycinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(2,6- 
                 
                     
                   dimethoxybenzoyl)glycinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-(1,3-dithian-2-yl)-3- 
                 
                     
                   furoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-[2-oxo-2- 
                 
                     
                   (propylamino)ethyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3- 
                 
                     
                   bromophenyl)propyl 3-[(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl 3-(2-fluorophenyl)propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-methylthiophene-2- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl [4-(benzyloxy)phenyl]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [(5,7- 
                 
                     
                   dimethyl[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-[(1-acetyl-2,3-dihydro-1H- 
                 
                     
                   indol-7-yl)amino]-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-[(3-acetylphenyl)amino]-5- 
                 
                     
                   oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(4-chlorophenoxy)-2- 
                 
                     
                   hydroxypropanoate 
                 
                     
                   N 3 -[(1S,2R)-3-(benzylamino)-1-(3-fluoro-4- 
                 
                     
                   methoxybenzyl)-2-hydroxypropyl]-N 1 ,N 1 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3- 
                 
                     
                   methylphenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 1H-indole-7-carboxylate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methylbutyl)amino]methyl}-3-(3- 
                 
                     
                   methylphenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(1,2,3-thiadiazol-4- 
                 
                     
                   yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-[3-(benzyloxy)-5-fluorophenyl]-1- 
                 
                     
                   {[(3-methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(4,4-dimethyl-2,5- 
                 
                     
                   dioxoimidazolidin-1-yl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methylbutyl)amino]methyl}-3-(4- 
                 
                     
                   methylphenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-[3-fluoro-5- 
                 
                     
                   (trifluoromethyl)phenyl]propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [1-methyl-3-(methylthio)-1H- 
                 
                     
                   indol-2-yl]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-dichlorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [(2-{[4-(1,3-oxazol-5- 
                 
                     
                   yl)phenyl]amino}-2-oxoethyl)thio]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(2-furyl)-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(3-pyridin-2-yl-1,2,4- 
                 
                     
                   oxadiazol-5-yl)propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [2-(acetylamino)-1,3- 
                 
                     
                   thiazol-4-yl]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [(4-methyl-4H-1,2,4-triazol- 
                 
                     
                   3-yl)thio](phenyl)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(4-chlorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(1,3-benzothiazol-2- 
                 
                     
                   yl)butanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-[(3-chloro-4- 
                 
                     
                   fluorophenyl)amino]-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-[3-(benzyloxy)-5-fluorophenyl]-1- 
                 
                     
                   {[(3-methylbutyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [(2-oxo-2,3- 
                 
                     
                   dihydroquinazolin-4-yl)thio]acetate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(benzyloxy)-N-(3-ethylbenzyl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(1S)-2-hydroxy-1-methylethyl]-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4- 
                 
                     
                   (pentafluorophenyl)butyl]-5-methyl-N′,N′-dipropyl-N-[3- 
                 
                     
                   (trifluoromethyl)benzyl]isophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(4-hydroxyphenyl)-4- 
                 
                     
                   oxobutanamide 
                 
                     
                   N-{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethyl)phenyl]butyl}-3-[(dipropylamino)sulfonyl]- 
                 
                     
                   N-(3-methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(piperidin-3- 
                 
                     
                   ylsulfonyl)benzamide dihydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-6-chloro-N-(3-ethylbenzyl)-4-hydroxyquinoline- 
                 
                     
                   2-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(2-thienyl)butyl]-N-(3- 
                 
                     
                   methoxybenzyl)-N′,N′-dipropylpentanediamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-5-methylhexyl]-N-(3- 
                 
                     
                   methoxybenzyl)-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(6-oxo-3-phenylpyridazin- 
                 
                     
                   1(6H)-yl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-{4- 
                 
                     
                   [(methylsulfonyl)amino]phenyl}propanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(4-fluoro-3-methylphenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene- 
                 
                     
                   1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(4-methylphenyl)butyl]- 
                 
                     
                   N-benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(2-chlorophenoxy)-N-(3- 
                 
                     
                   iodobenzyl)propanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(4-fluorophenyl)-2-hydroxybutyl]- 
                 
                     
                   N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-{(2R,3S)-3-amino-4-[3-(benzyloxy)-5-fluorophenyl]-2- 
                 
                     
                   hydroxybutyl}-3-[(dipropylamino)sulfonyl]-N-(3- 
                 
                     
                   methoxybenzyl)propanamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(4-methylphenyl)-4- 
                 
                     
                   oxobutanamide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-oxo-4-{[3- 
                 
                     
                   (trifluoromethyl)phenyl]amino}butanoate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(1,3-benzodioxol-5-yl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-methoxybenzyl)-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(3-methylphenyl)butyl]- 
                 
                     
                   3-[(dipropylamino)sulfonyl]-N-(3-methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)isoxazole-5-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-(3,5-dimethoxyphenoxy)-N-(3- 
                 
                     
                   ethylbenzyl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(2,5-dimethyl-1H-pyrrol-1-yl)-N-(3- 
                 
                     
                   ethylbenzyl)-3-hydroxybenzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-bromophenyl)-2-hydroxybutyl]-N- 
                 
                     
                   (3-methoxybenzyl)-N′,N′-dipropylpentanediamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-[5-(cyclopentylmethyl)-1,3,4-thiadiazol-2- 
                 
                     
                   yl]-N-(3-ethylbenzyl)succinamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethyl)phenyl]butyl}-N 1 -benzyl-N 3 ,N 3 - 
                 
                     
                   dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(3-oxo-1,2-benzisothiazol- 
                 
                     
                   2(3H)-yl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-[1-methyl-5-(pyrrolidin-1- 
                 
                     
                   ylcarbonyl)-1H-pyrrol-3-yl]-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(3,4-difluorophenyl)-N-(3-ethylbenzyl)-4- 
                 
                     
                   oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(2-naphthyl)-4- 
                 
                     
                   oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4,6-diethoxy-N-(3-ethylbenzyl)pyridine-2- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(5-methyl-1H-pyrrol-2-yl)- 
                 
                     
                   4-oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-({[2- 
                 
                     
                   (methylamino)ethyl]amino}sulfonyl)benzamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-methoxybenzyl)-3-methyl-5-(4- 
                 
                     
                   methylbenzoyl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(1,3-benzodioxol-5-yl)-2- 
                 
                     
                   hydroxybutyl]-N-benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(piperazin-1- 
                 
                     
                   ylsulfonyl)benzamide hydrochloride 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-{2-[4-(aminosulfonyl)phenyl]ethyl}-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[2-hydroxy-1-(hydroxymethyl)ethyl]-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(4-fluoro-3-methylphenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(3-oxo-2,1-benzisothiazol- 
                 
                     
                   1(3H)-yl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-(2,6-dihydroxypyrimidin-4-yl)-N-(3- 
                 
                     
                   ethylbenzyl)acetamide 
                 
                     
                   N-{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethyl)phenyl]butyl}-N-(3-methoxybenzyl)-N′,N′- 
                 
                     
                   dipropylpentanediamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(4-hydroxyphenyl)butyl]- 
                 
                     
                   N-benzyl-3-[(dipropylamino)sulfonyl]propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(3,4-difluorophenyl)-N-(3-ethylbenzyl)-2- 
                 
                     
                   methyl-4-oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-(2-pyridin-2- 
                 
                     
                   ylethyl)pentanediamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[2-(4-fluorophenyl)-1,3- 
                 
                     
                   benzoxazol-5-yl]acetamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 2 -(anilinocarbonyl)-N 1 -(3- 
                 
                     
                   ethylbenzyl)glycinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-(1,3-dithian-2-yl)-N-(3-ethylbenzyl)-3- 
                 
                     
                   furamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[2-oxo-2- 
                 
                     
                   (propylamino)ethyl]benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-bromophenyl)-2-hydroxybutyl]-N- 
                 
                     
                   benzyl-3-[(dipropylamino)sulfonyl]propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(2-fluorophenyl)-N-(3-iodobenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-methylthiophene-2- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-[4-(benzyloxy)phenyl]-N-(3- 
                 
                     
                   iodobenzyl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-[(5,7-dimethyl[1,2,4]triazolo[4,3- 
                 
                     
                   a]pyrimidin-3-yl)thio]-N-(3-ethylbenzyl)acetamide 
                 
                     
                   N′-(1-acetyl-2,3-dihydro-1H-indol-7-yl)-N-[(2R,3S)-3- 
                 
                     
                   amino-4-(3,5-difluorophenyl)-2-hydroxybutyl]-N-(3- 
                 
                     
                   ethylbenzyl)succinamide 
                 
                     
                   N′-(3-acetylphenyl)-N-[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N-(3- 
                 
                     
                   ethylbenzyl)pentanediamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(4-chlorophenoxy)-N-(3-ethylbenzyl)-2- 
                 
                     
                   hydroxypropanamide 
                 
                     
                   N 3 -[(1S,2R)-3-(benzylamino)-1-(3-fluoro-4- 
                 
                     
                   methoxybenzyl)-2-hydroxypropyl]-N 1 ,N 1 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(3-methylphenyl)butyl]- 
                 
                     
                   N 1 -benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-1H-indole-7-carboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(3-methylphenyl)butyl]- 
                 
                     
                   N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(1,2,3-thiadiazol-4- 
                 
                     
                   yl)benzamide 
                 
                     
                   N-{(2R,3S)-3-amino-4-[3-(benzyloxy)-5-fluorophenyl]-2- 
                 
                     
                   hydroxybutyl}-3-[(dipropylamino)sulfonyl]-N-(3- 
                 
                     
                   methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(4,4-dimethyl-2,5-dioxoimidazolidin-1-yl)-N- 
                 
                     
                   (3-ethylbenzyl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(4-methylphenyl)butyl]- 
                 
                     
                   5-methyl-N-(3-methylbutyl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-{(2R,3S)-3-amino-4-[3-fluoro-5- 
                 
                     
                   (trifluoromethyl)phenyl]-2-hydroxybutyl}-N-benzyl-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[1-methyl-3-(methylthio)- 
                 
                     
                   1H-indol-2-yl]acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-dichlorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-(3-methylbutyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   2-({2-[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-ethylbenzyl)amino]-2-oxoethyl}thio)-N-[4- 
                 
                     
                   (1,3-oxazol-5-yl)phenyl]acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(2-furyl)-4-oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(3-pyridin-2-yl-1,2,4- 
                 
                     
                   oxadiazol-5-yl)propanamide 
                 
                     
                   2-[2-(acetylamino)-1,3-thiazol-4-yl]-N-[(2R,3S)-3- 
                 
                     
                   amino-4-(3,5-difluorophenyl)-2-hydroxybutyl]-N-(3- 
                 
                     
                   ethylbenzyl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[(4-methyl-4H-1,2,4- 
                 
                     
                   triazol-3-yl)thio]-2-phenylacetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(4-chlorophenyl)-2-hydroxybutyl]- 
                 
                     
                   5-methyl-N-(3-methylbutyl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(1,3-benzothiazol-2-yl)-N-(3- 
                 
                     
                   ethylbenzyl)butanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-(3-chloro-4-fluorophenyl)-N-(3- 
                 
                     
                   ethylbenzyl)succinamide 
                 
                     
                   N-{(2R,3S)-3-amino-4-[3-(benzyloxy)-5-fluorophenyl]-2- 
                 
                     
                   hydroxybutyl}-5-methyl-N-(3-methylbutyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[(2-oxo-2,3- 
                 
                     
                   dihydroquinazolin-4-yl)thio]acetamide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-methyl-5-(2- 
                 
                     
                   methylbenzoyl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-hydroxyphenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 5-(dipropylamino)-5- 
                 
                     
                   oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(4- 
                 
                     
                   methylphenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-propoxybenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 1-methyl-1H-indole-2- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-chloro-2-(3-methyl-4H- 
                 
                     
                   1,2,4-triazol-4-yl)benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(3,4-difluorophenyl)-2- 
                 
                     
                   methoxy-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [3-(2-thienyl)-1H-pyrazol-1- 
                 
                     
                   yl]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-anilino-5-oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2-thioxo-1,3-benzothiazol- 
                 
                     
                   3(2H)-yl)acetate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3- 
                 
                     
                   cyclohexylpropyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   (4-methoxyphenyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (3-hydroxy-4- 
                 
                     
                   methylphenyl)acetate 
                 
                     
                   (1R,2S)-2-amino-3-[3-fluoro-5-(trifluoromethyl)phenyl]- 
                 
                     
                   1-{[(3-methylbutyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 7-fluoro-4H-imidazo[5,1- 
                 
                     
                   c][1,4]benzoxazine-3-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(3,4-dihydro-2H-1,5- 
                 
                     
                   benzodioxepin-7-yl)-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 1-benzofuran-3-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(3,4- 
                 
                     
                   dichlorophenyl)amino]-3-oxopropanoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-[3-fluoro-5- 
                 
                     
                   (trifluoromethyl)phenyl]propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1R)-2- 
                 
                     
                   hydroxy-1-methylethyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3- 
                 
                     
                   methylphenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-oxo-5-(pyridin-3- 
                 
                     
                   ylamino)pentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-methyl-4-oxo-4H-chromene- 
                 
                     
                   6-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl ({2-[(5-methylisoxazol-3- 
                 
                     
                   yl)amino]-2-oxoethyl}thio)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3-(1H- 
                 
                     
                   imidazol-1-yl)propyl]amino}methyl)propyl 3- 
                 
                     
                   [(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-[3-fluoro-5-(trifluoromethyl)phenyl]- 
                 
                     
                   1-{[(3-methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-hydroxyphenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(1,3-benzodioxol-5-yl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methylbutyl)amino]methyl}-3-(2- 
                 
                     
                   thienyl)propyl 3-[(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-[(2,2- 
                 
                     
                   dimethylpropanoyl)amino]-2-hydroxybenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-methoxyphenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(4-fluorophenyl)-1-{[(3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3-{[(3- 
                 
                     
                   methoxybenzyl)amino]sulfonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methylbutyl)amino]methyl}-3-[3- 
                 
                     
                   (trifluoromethyl)phenyl]propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 6-(2-furoylamino)hexanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [(1-phenyl-4,5-dihydro-1H- 
                 
                     
                   tetrazol-5-yl)thio]acetate 
                 
                     
                   (1S,2S)-2-amino-3-phenyl-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3-{[(3- 
                 
                     
                   methoxybenzyl)amino]sulfonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(3,4-dihydro-2H-chromen-6- 
                 
                     
                   yl)-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-methoxyphenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3-fluoro-4-methylphenyl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 5-(dipropylamino)-5- 
                 
                     
                   oxopentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl indolizine-2-carboxylate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-[3- 
                 
                     
                   (trifluoromethoxy)phenyl]propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl nicotinate 1-oxide 
                 
                     
                   (1R,2S)-2-amino-3-[3-(benzyloxy)-5-fluorophenyl]-1- 
                 
                     
                   {[(3-methylbutyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   iodobenzyl)amino]methyl}propyl [(aminocarbonyl)oxy]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2,3-dihydro-1H- 
                 
                     
                   cyclopenta[b]quinoline-9-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-methyl-1H-pyrazole-5- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-(benzoylamino)pentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4- 
                 
                     
                   [(methoxymethyl)thio]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(1,3-benzothiazol-2-yl)-3- 
                 
                     
                   methoxypropanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3- 
                 
                     
                   {[(methylamino)carbonyl]amino}-3-(3-thienyl)propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-pyridin-2-ylthiophene-2- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-[3- 
                 
                     
                   (benzyloxy)-5-fluorophenyl]propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (5,6-dimethyl-2,4-dioxo- 
                 
                     
                   1,2,3,4-tetrahydropyridin-3-yl)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3-fluoro-4-methoxyphenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-[(dipropylamino)carbonyl]- 
                 
                     
                   5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-isobutyl-1,3- 
                 
                     
                   dioxoisoindoline-5-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-(acetylamino)-2-furoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(4- 
                 
                     
                   methoxyphenyl)acetyl]glycinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl isoquinoline-4-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-[3-(benzyloxy)phenyl]-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (4-hydroxy-3- 
                 
                     
                   methoxyphenyl)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [(4-phenyl-4H-1,2,4-triazol- 
                 
                     
                   3-yl)thio]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (3,5-dimethoxyphenyl)acetate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(3- 
                 
                     
                   methoxyphenyl)propyl 3-[(dipropylamino)carbonyl]-5- 
                 
                     
                   methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2-ethyl-4H- 
                 
                     
                   [1,2,4]triazolo[1,5-a]benzimidazol-4-yl)acetate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(2- 
                 
                     
                   furyl)propyl 3-[(dipropylamino)carbonyl]-5-methylbenzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 7-chloro-1-benzofuran-2- 
                 
                     
                   carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-(1,3-dioxo-1,3-dihydro-2H- 
                 
                     
                   isoindol-2-yl)propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(2-oxo-2H-1,3-benzoxazin- 
                 
                     
                   3(4H)-yl)propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (pyrimidin-2-ylthio)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-{[3-(aminocarbonyl)- 
                 
                     
                   4,5,6,7-tetrahydro-1-benzothien-2-yl]amino}-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [(5-phenyl-1,3,4-oxadiazol- 
                 
                     
                   2-yl)thio]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl quinoline-6-carboxylate 
                 
                     
                   (1R,2S)-2-amino-1-[(benzylamino)methyl]-3-(2- 
                 
                     
                   furyl)propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(2,3-dihydro-1,4- 
                 
                     
                   benzodioxin-6-yl)-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(1H-indol-3-yl)-1H- 
                 
                     
                   pyrazole-5-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-hydroxy-4- 
                 
                     
                   {[(methylamino)carbonothioyl]amino}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 6-chloronicotinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(3-hydroxyphenyl)-4- 
                 
                     
                   oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (phthalazin-1-ylthio)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl [(1-oxidopyridin-2- 
                 
                     
                   yl)thio]acetate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(acetylamino)-5-fluoro-1H- 
                 
                     
                   indole-2-carboxylate 
                 
                     
                   (1S,2S)-2-amino-3-phenyl-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3-{[(3- 
                 
                     
                   chlorobenzyl)amino]sulfonyl}benzoate 
                 
                     
                   (1R,2S)-2-amino-3-[4-(benzyloxy)phenyl]-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(1,3-benzodioxol-5-yl)-1- 
                 
                     
                   [(benzylamino)methyl]propyl 3-(aminocarbonyl)-5- 
                 
                     
                   [(dipropylamino)carbonyl]benzoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-(3,4-dichlorophenyl)-2- 
                 
                     
                   hydroxy-3-methyl-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methylbutyl)amino]methyl}-3-[3- 
                 
                     
                   (trifluoromethoxy)phenyl]propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-[(5-methyl-1,3,4- 
                 
                     
                   thiadiazol-2-yl)amino]-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2-ethyl-1H-benzimidazol-1- 
                 
                     
                   yl)acetate 
                 
                     
                   (1R,2S)-2-amino-3-(1,3-benzodioxol-5-yl)-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(2-oxo-1,3-benzoxazol- 
                 
                     
                   3(2H)-yl)propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-dichlorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3- 
                 
                     
                   [(dipropylamino)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-[(6-methylpyridin-2- 
                 
                     
                   yl)amino]-4-oxobutanoate 
                 
                     
                   4-((1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl) 3-ethyl (4R)-1,3- 
                 
                     
                   oxazolidine-3,4-dicarboxylate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-methoxybenzyl)-3-methyl-5-(2- 
                 
                     
                   methylbenzoyl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(4-hydroxyphenyl)butyl]- 
                 
                     
                   N-(3-methoxybenzyl)-N′,N′-dipropylpentanediamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(4-methylphenyl)butyl]- 
                 
                     
                   N 1 -benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-propoxybenzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-1-methyl-1H-indole-2- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-5-chloro-N-(3-ethylbenzyl)-2-(3-methyl-4H- 
                 
                     
                   1,2,4-triazol-4-yl)benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(3,4-difluorophenyl)-N-(3-ethylbenzyl)-2- 
                 
                     
                   methoxy-4-oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[3-(2-thienyl)-1H-pyrazol- 
                 
                     
                   1-yl]acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-phenylpentanediamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(2-thioxo-1,3- 
                 
                     
                   benzothiazol-3(2H)-yl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-cyclohexyl-2-hydroxybutyl]-N- 
                 
                     
                   benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(4- 
                 
                     
                   methoxyphenyl)butyl]-N 1 -(3-methoxybenzyl)-N 3 ,N 3 - 
                 
                     
                   dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(3-hydroxy-4- 
                 
                     
                   methylphenyl)acetamide 
                 
                     
                   N-{(2R,3S)-3-amino-4-[3-fluoro-5- 
                 
                     
                   (trifluoromethyl)phenyl]-2-hydroxybutyl}-5-methyl-N-(3- 
                 
                     
                   methylbutyl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-7-fluoro-4H-imidazo[5,1- 
                 
                     
                   c][1,4]benzoxazine-3-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)-N- 
                 
                     
                   (3-ethylbenzyl)-4-oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-1-benzofuran-3-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N′-(3,4-dichlorophenyl)-N-(3- 
                 
                     
                   ethylbenzyl)malonamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-4-[3-fluoro-5- 
                 
                     
                   (trifluoromethyl)phenyl]-2-hydroxybutyl}-N 1 -benzyl-N 3 ,N 3 - 
                 
                     
                   dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[(1R)-2-hydroxy-1-methylethyl]-5-methyl- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(3-methylphenyl)butyl]- 
                 
                     
                   N-benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-pyridin-3- 
                 
                     
                   ylpentanediamide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-methyl-4-oxo-4H-chromene- 
                 
                     
                   6-carboxylate 
                 
                     
                   2-({2-[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-ethylbenzyl)amino]-2-oxoethyl}thio)-N-(5- 
                 
                     
                   methylisoxazol-3-yl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-[3-(1H-imidazol-1-yl)propyl]-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-{(2R,3S)-3-amino-4-[3-fluoro-5- 
                 
                     
                   (trifluoromethyl)phenyl]-2-hydroxybutyl}-3- 
                 
                     
                   [(dipropylamino)sulfonyl]-N-(3-methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(4-hydroxyphenyl)butyl]- 
                 
                     
                   3-[(dipropylamino)sulfonyl]-N-(3-methylbutyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(1,3-benzodioxol-5-yl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-(3-methylbutyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(2-thienyl)butyl]-3- 
                 
                     
                   [(dipropylamino)sulfonyl]-N-(3-methylbutyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-[(2,2-dimethylpropanoyl)amino]-N-(3- 
                 
                     
                   ethylbenzyl)-2-hydroxybenzamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(3-methoxyphenyl)butyl]- 
                 
                     
                   5-methyl-N-(3-methylbutyl)-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(4-fluorophenyl)-2-hydroxybutyl]- 
                 
                     
                   3-{[(3-methoxybenzyl)amino]sulfonyl}-N-[3- 
                 
                     
                   (trifluoromethyl)benzyl]benzamide 
                 
                     
                   N-{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethyl)phenyl]butyl}-5-methyl-N-(3-methylbutyl)- 
                 
                     
                   N′,N′-dipropylisophthalamide 
                 
                     
                   N-{6-[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-ethylbenzyl)amino]-6-oxohexyl}-2-furamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[(1-phenyl-4,5-dihydro-1H- 
                 
                     
                   tetrazol-5-yl)thio]acetamide 
                 
                     
                   N-[(2S,3S)-3-amino-2-hydroxy-4-phenylbutyl]-3-{[(3- 
                 
                     
                   methoxybenzyl)amino]sulfonyl}-N-[3- 
                 
                     
                   (trifluoromethyl)benzyl]benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(3,4-dihydro-2H-chromen-6-yl)-N-(3- 
                 
                     
                   ethylbenzyl)-4-oxobutanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-(3- 
                 
                     
                   methoxyphenyl)butyl]-N 1 -(3-methylbutyl)-N 3 ,N 3 - 
                 
                     
                   dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-fluoro-4-methylphenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-methoxybenzyl)-N′,N′- 
                 
                     
                   dipropylpentanediamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)indolizine-2-carboxamide 
                 
                     
                   N-{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethoxy)phenyl]butyl}-N-benzyl-5-methyl-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)nicotinamide 1-oxide 
                 
                     
                   N-{(2R,3S)-3-amino-4-[3-(benzyloxy)-5-fluorophenyl]-2- 
                 
                     
                   hydroxybutyl}-3-[(dipropylamino)sulfonyl]-N-(3- 
                 
                     
                   methylbutyl)propanamide 
                 
                     
                   2-[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-iodobenzyl)amino]-2-oxoethyl carbamate 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2,3-dihydro-1H- 
                 
                     
                   cyclopenta[b]quinoline-9-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-methyl-1H-pyrazole-5- 
                 
                     
                   carboxamide 
                 
                     
                   N-{5-[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-ethylbenzyl)amino]-5-oxopentyl}benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4- 
                 
                     
                   [(methoxymethyl)thio]benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(1,3-benzothiazol-2-yl)-N-(3-ethylbenzyl)-3- 
                 
                     
                   methoxypropanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3- 
                 
                     
                   {[(methylamino)carbonyl]amino}-3-(3-thienyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-pyridin-2-ylthiophene-2- 
                 
                     
                   carboxamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-4-[3-(benzyloxy)-5-fluorophenyl]-2- 
                 
                     
                   hydroxybutyl}-N 1 -benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-(5,6-dimethyl-2,4-dioxo-1,2,3,4- 
                 
                     
                   tetrahydropyridin-3-yl)-N-(3-ethylbenzyl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3-fluoro-4-methoxyphenyl)-2- 
                 
                     
                   hydroxybutyl]-5-methyl-N-(3-methylbutyl)-N′,N′- 
                 
                     
                   dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-isobutyl-1,3- 
                 
                     
                   dioxoisoindoline-5-carboxamide 
                 
                     
                   5-(acetylamino)-N-[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N-(3-ethylbenzyl)-2-furamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -[(4- 
                 
                     
                   methoxyphenyl)acetyl]glycinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)isoquinoline-4-carboxamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-4-[3-(benzyloxy)phenyl]-2- 
                 
                     
                   hydroxybutyl}-N 1 -(3-methylbutyl)-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(4-hydroxy-3- 
                 
                     
                   methoxyphenyl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[(4-phenyl-4H-1,2,4- 
                 
                     
                   triazol-3-yl)thio]acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-(3,5-dimethoxyphenyl)-N-(3- 
                 
                     
                   ethylbenzyl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-(3-methoxyphenyl)butyl]- 
                 
                     
                   N-benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(2-ethyl-4H- 
                 
                     
                   [1,2,4]triazolo[1,5-a]benzimidazol-4-yl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(2-furyl)-2-hydroxybutyl]-N- 
                 
                     
                   benzyl-5-methyl-N′,N′-dipropylisophthalamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-7-chloro-N-(3-ethylbenzyl)-1-benzofuran-2- 
                 
                     
                   carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-N- 
                 
                     
                   (3-ethylbenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(2-oxo-2H-1,3-benzoxazin- 
                 
                     
                   3(4H)-yl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(pyrimidin-2- 
                 
                     
                   ylthio)acetamide 
                 
                     
                   N′-[3-(aminocarbonyl)-4,5,6,7-tetrahydro-1-benzothien- 
                 
                     
                   2-yl]-N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)succinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[(5-phenyl-1,3,4- 
                 
                     
                   oxadiazol-2-yl)thio]acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)quinoline-6-carboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(2-furyl)-2-hydroxybutyl]-N 1 - 
                 
                     
                   benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5-tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(2,3-dihydro-1,4-benzodioxin-6-yl)-N-(3- 
                 
                     
                   ethylbenzyl)-4-oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(1H-indol-3-yl)-1H- 
                 
                     
                   pyrazole-5-carboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-hydroxy-4- 
                 
                     
                   {[(methylamino)carbonothioyl]amino}benzamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-6-chloro-N-(3-ethylbenzyl)nicotinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-(3-hydroxyphenyl)-4- 
                 
                     
                   oxobutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-(phthalazin-1- 
                 
                     
                   ylthio)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-[(1-oxidopyridin-2- 
                 
                     
                   yl)thio]acetamide 
                 
                     
                   3-(acetylamino)-N-[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N-(3-ethylbenzyl)-5-fluoro- 
                 
                     
                   1H-indole-2-carboxamide 
                 
                     
                   N-[(2S,3S)-3-amino-2-hydroxy-4-phenylbutyl]-3-{[(3- 
                 
                     
                   chlorobenzyl)amino]sulfonyl}-N-[3- 
                 
                     
                   (trifluoromethyl)benzyl]benzamide 
                 
                     
                   N 1 -{(2R,3S)-3-amino-4-[4-(benzyloxy)phenyl]-2- 
                 
                     
                   hydroxybutyl}-N 1 -(3-methoxybenzyl)-N 3 ,N 3 -dipropylbenzene- 
                 
                     
                   1,3,5-tricarboxamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(1,3-benzodioxol-5-yl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -benzyl-N 3 ,N 3 -dipropylbenzene-1,3,5- 
                 
                     
                   tricarboxamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(3,4-dichlorophenyl)-N-(3-ethylbenzyl)-2- 
                 
                     
                   hydroxy-3-methyl-4-oxobutanamide 
                 
                     
                   N-{(2R,3S)-3-amino-2-hydroxy-4-[3- 
                 
                     
                   (trifluoromethoxy)phenyl]butyl}-3-[(dipropylamino)sulfonyl]- 
                 
                     
                   N-(3-methylbutyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-(5-methyl-1,3,4- 
                 
                     
                   thiadiazol-2-yl)succinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-2-(2-ethyl-1H-benzimidazol-1-yl)-N-(3- 
                 
                     
                   ethylbenzyl)acetamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(1,3-benzodioxol-5-yl)-2- 
                 
                     
                   hydroxybutyl]-3-[(dipropylamino)sulfonyl]-N-(3- 
                 
                     
                   methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-3-(2-oxo-1,3-benzoxazol- 
                 
                     
                   3(2H)-yl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-dichlorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-[(dipropylamino)sulfonyl]-N-(3- 
                 
                     
                   methylbutyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-N′-(6-methylpyridin-2- 
                 
                     
                   yl)succinamide 
                 
                     
                   ethyl (4R)-4-{[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)- 
                 
                     
                   2-hydroxybutyl](3-ethylbenzyl)amino]carbonyl}-1,3- 
                 
                     
                   oxazolidine-3-carboxylate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfinyl)-N- 
                 
                     
                   (methoxycarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl S-butyl-N-(methoxycarbonyl)- 
                 
                     
                   D-cysteinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   [(4,4,4-trifluorobutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   [(4,4,4-trifluorobutyl)sulfinyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-S- 
                 
                     
                   (4,4,4-trifluorobutyl)-D-cysteinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N- 
                 
                     
                   (methoxycarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-[(2,2,2- 
                 
                     
                   trifluoroethoxy)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-[(2- 
                 
                     
                   cyanoethoxy)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-{[(3R)- 
                 
                     
                   pyrrolidin-3-yloxy]carbonyl}-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-{[(3S)- 
                 
                     
                   tetrahydrofuran-3-yloxy]carbonyl}-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-{[2- 
                 
                     
                   (acetylamino)ethoxy]carbonyl}-3-(butylsulfonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N- 
                 
                     
                   [(pyridin-3-ylmethoxy)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N- 
                 
                     
                   [(pyridin-4-ylmethoxy)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-1-[(cyclopropylamino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-(butylsulfonyl)-N-(methoxycarbonyl)- 
                 
                     
                   D-alaninate 
                 
                     
                   (1R,2S)-2-amino-1-[(cyclopropylamino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-(butylsulfonyl)-N-[(2- 
                 
                     
                   cyanoethoxy)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   (butylsulfonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(butylsulfonyl)-N- 
                 
                     
                   (methoxycarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-1-[(cyclopropylamino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl N-[(2-cyanoethoxy)carbonyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-1-[(cyclopropylamino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl N-{[2-(acetylamino)ethoxy]carbonyl}-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl N-(methoxycarbonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-{[2-(diethylamino)-2- 
                 
                     
                   oxoethoxy]carbonyl}-3-[(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(methoxycarbonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(isopropoxycarbonyl)-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N- 
                 
                     
                   [(cyclopropylmethoxy)carbonyl]-3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(allyloxy)carbonyl]-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(2-cyanoethoxy)carbonyl]- 
                 
                     
                   3-[(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-{[2- 
                 
                     
                   (acetylamino)ethoxy]carbonyl}-3-[(1-propylbutyl)sulfonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-[(pyridin-3-ylmethoxy)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-[(pyridin-4-ylmethoxy)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-2- 
                 
                     
                   {[(benzyloxy)carbonyl]amino}-4-(methylsulfonyl)butanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   (butylsulfonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   (butylsulfonyl)-L-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1R)-2- 
                 
                     
                   hydroxy-1-phenylethyl]amino}methyl)propyl N- 
                 
                     
                   [(benzyloxy)carbonyl]-3-[(1-propylbutyl)sulfonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1R)-2- 
                 
                     
                   methoxy-1-phenylethyl]amino}methyl)propyl N- 
                 
                     
                   [(benzyloxy)carbonyl]-3-[(1-propylbutyl)sulfonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[(1S)-2- 
                 
                     
                   methoxy-1-phenylethyl]amino}methyl)propyl N- 
                 
                     
                   [(benzyloxy)carbonyl]-3-[(1-propylbutyl)sulfonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl N- 
                 
                     
                   [(benzyloxy)carbonyl]-3-[(1-propylbutyl)sulfonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-[(prop-2-yn-1-yloxy)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(2- 
                 
                     
                   methoxyethoxy)carbonyl]-3-[(1-propylbutyl)sulfonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-({[(3R)-1- 
                 
                     
                   acetylpyrrolidin-3-yl]oxy}carbonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-{[(3S)-tetrahydrofuran-3-yloxy]carbonyl}-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-{[(3S)-tetrahydrofuran-3-yloxy]carbonyl}-L-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-L-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl N- 
                 
                     
                   [(benzyloxy)carbonyl]-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-1-[(cyclopropylamino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl N-[(benzyloxy)carbonyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-1-{[(cyclopropylmethyl)amino]methyl}-3- 
                 
                     
                   (3,5-difluorophenyl)propyl N-[(benzyloxy)carbonyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylphenyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({2-[3- 
                 
                     
                   (trifluoromethyl)phenyl]ethyl}amino)methyl]propyl N- 
                 
                     
                   [(benzyloxy)carbonyl]-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-[(pyridin-3-ylmethoxy)carbonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-{[(3S)-tetrahydrofuran-3-yloxy]carbonyl}alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-{[(3R)-tetrahydrofuran-3-yloxy]carbonyl}alaninate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 3-[(1-propylbutyl)sulfonyl]-N-{[(3S)- 
                 
                     
                   tetrahydrofuran-3-yloxy]carbonyl}alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-({[(3R)-1- 
                 
                     
                   acetylpyrrolidin-3-yl]oxy}carbonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-{[(3R)-pyrrolidin-3-yloxy]carbonyl}alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-({[(3R)-1- 
                 
                     
                   benzylpyrrolidin-3-yl]oxy}carbonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-({[(3R)-1,1- 
                 
                     
                   dioxidotetrahydro-3-thienyl]oxy}carbonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-{[(3R)-tetrahydro-3-thienyloxy]carbonyl}alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N- 
                 
                     
                   [(cyclopentyloxy)carbonyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(cyclohexyloxy)carbonyl]- 
                 
                     
                   3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-1-[(cyclopropylamino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-[(1-propylbutyl)sulfonyl]-N- 
                 
                     
                   [(tetrahydro-2H-pyran-4-yloxy)carbonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-({[1- 
                 
                     
                   (methylsulfonyl)piperidin-4-yl]oxy}carbonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-{[(1-acetylpiperidin-4- 
                 
                     
                   yl)oxy]carbonyl}-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-({[(2R)-5-oxopyrrolidin-2- 
                 
                     
                   yl]methoxy}carbonyl)-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-({[(2S)-5-oxopyrrolidin-2- 
                 
                     
                   yl]methoxy}carbonyl)-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(2- 
                 
                     
                   methoxyethoxy)carbonyl]-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(benzyloxy)carbonyl]-3- 
                 
                     
                   (butylsulfonyl)alaninate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl N-[(benzyloxy)carbonyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   N-{(1S,2R)-1-benzyl-2-hydroxy-3-[(3- 
                 
                     
                   methoxybenzyl)amino]propyl}-2-hydroxy-4- 
                 
                     
                   (phenylsulfonyl)butanamide hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N 2 -[(benzyloxy)carbonyl]- 
                 
                     
                   N 5 ,N 5 -dipropyl-L-glutaminate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N 2 -[(benzyloxy)carbonyl]- 
                 
                     
                   N 5 ,N 5 -dipropyl-D-glutaminate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-(3,3,3- 
                 
                     
                   trifluoropropanoyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N- 
                 
                     
                   (trifluoroacetyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-acetyl-3-(butylsulfonyl)- 
                 
                     
                   D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N- 
                 
                     
                   isonicotinoyl-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N- 
                 
                     
                   (cyclopropylcarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl β-alanyl-3-(butylsulfonyl)- 
                 
                     
                   D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl glycyl-3-(butylsulfonyl)-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N,N-dimethylglycyl-3- 
                 
                     
                   (butylsulfonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N,N-dimethyl-β-alanyl-3- 
                 
                     
                   (butylsulfonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N 
                 
                     
                   (methoxyacetyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N- 
                 
                     
                   (pyridin-3-ylcarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-[(2,4- 
                 
                     
                   dimethyl-1,3-thiazol-5-yl)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-{[3- 
                 
                     
                   (trifluoromethyl)-1H-pyrazol-4-yl]carbonyl}-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-[(3- 
                 
                     
                   methyl-1H-pyrazol-5-yl)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-(1H- 
                 
                     
                   imidazol-4-ylcarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-5-hydroxy-2- 
                 
                     
                   [(methoxycarbonyl)amino]nonanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-[(6- 
                 
                     
                   hydroxypyridin-3-yl)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-1-[(cyclopropylamino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-(butylsulfonyl)-N-(pyridin-3- 
                 
                     
                   ylcarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl N-acetyl-3-(butylsulfonyl)- 
                 
                     
                   D-alaninate 
                 
                     
                   (1R,2S)-2-amino-1-[(cyclopropylamino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl N-(cyclopropylcarbonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl N-acetyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-isonicotinoyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(5-bromopyridin-3- 
                 
                     
                   yl)carbonyl]-3-[(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(5-chloropyridin-3- 
                 
                     
                   yl)carbonyl]-3-[(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(3-fluorobenzoyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(5-methylpyridin-3- 
                 
                     
                   yl)carbonyl]-3-[(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-phenylglycyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-{[3-(trifluoromethyl)-1H-pyrazol-4-yl]carbonyl}-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(3-methyl-1H-pyrazol-5- 
                 
                     
                   yl)carbonyl]-3-[(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-(1,3-thiazol-4-ylcarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(1-acetylpiperidin-4- 
                 
                     
                   yl)carbonyl]-3-[(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[4-(acetylamino)butanoyl]- 
                 
                     
                   3-[(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-acetyl-β-alanyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(chloroacetyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(methoxyacetyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(3-methoxypropanoyl)-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(2,2-dimethylpropanoyl)-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-isobutyryl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-butyryl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-acetyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl 3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-N-(pyridin-3-ylcarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl N-isonicotinoyl- 
                 
                     
                   3-[(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl N-(3- 
                 
                     
                   hydroxybenzoyl)-3-[(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-(pyridin-3-ylcarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(3-hydroxybenzoyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(cyclopropylcarbonyl)-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-propionyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N- 
                 
                     
                   (pyridin-3-ylcarbonyl)alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl N-(3- 
                 
                     
                   hydroxybenzoyl)-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl N-isonicotinoyl- 
                 
                     
                   3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(6-oxo-1,4,5,6- 
                 
                     
                   tetrahydropyridazin-3-yl)carbonyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-oxo-D-prolyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 5-oxo-L-prolyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[3-(4-oxo-2-thioxo-1,3- 
                 
                     
                   thiazolidin-3-yl)propanoyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(piperidin-4-ylcarbonyl)- 
                 
                     
                   3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(2,4-dimethyl-1,3- 
                 
                     
                   thiazol-5-yl)carbonyl]-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-{[2-methyl-4- 
                 
                     
                   (trifluoromethyl)-1,3-thiazol-5-yl]carbonyl}-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(3,5-dimethylisoxazol-4- 
                 
                     
                   yl)carbonyl]-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(3-methyl-1H-pyrazol-5- 
                 
                     
                   yl)carbonyl]-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-(1H-pyrazol-4-ylcarbonyl)alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(1H-imidazol-5- 
                 
                     
                   ylcarbonyl)-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(1H-imidazol-4-ylacetyl)- 
                 
                     
                   3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-(pyrazin-2-ylcarbonyl)alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(2,6- 
                 
                     
                   dihydroxyisonicotinoyl)-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(6-hydroxypyridin-3- 
                 
                     
                   yl)carbonyl]-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-[(6-chloropyridin-3- 
                 
                     
                   yl)carbonyl]-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-isonicotinoyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-(pyridin-3-ylcarbonyl)alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-(pyridin-2-ylcarbonyl)alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(1H-indol-6-ylcarbonyl)-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]alaninate hydrochloride 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-(3,4,5-trimethoxybenzoyl)alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(2-methylbenzoyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(3-hydroxybenzoyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(3-methylbenzoyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(3-ethylbenzoyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(3-chlorobenzoyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-[4-(trifluoromethyl)benzoyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(4-methoxybenzoyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-[4-(trifluoromethyl)benzoyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(cyclohexylcarbonyl)-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-benzoyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-1-[(cyclopropylamino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl N-benzoyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(phenylacetyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(3-phenylpropanoyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(benzoylamino)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl N-(cyclopropylacetyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl N-[(methylsulfonyl)acetyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl N-[(methylthio)acetyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl N-[4-(methylamino)-4-oxobutanoyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl N-(methylsulfonyl)glycyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl N-acetyl-3-(phenylsulfonyl)alaninate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2S)-2-[(4-methoxy-4-oxobutanoyl)amino]-5-oxo- 
                 
                     
                   5-piperidin-1-ylpentanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2R)-2-{[(benzyloxy)carbonyl]amino}-5-oxo-5- 
                 
                     
                   piperidin-1-ylpentanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2R)-2-[(3-ethoxy-3-oxopropanoyl)amino]-5-oxo- 
                 
                     
                   5-piperidin-1-ylpentanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl N 2 -(4-methoxy-4-oxobutanoyl)-N 5 ,N 5 -dipropyl-D- 
                 
                     
                   glutaminate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2R)-2-[(4-methoxy-4-oxobutanoyl)amino]-5-oxo- 
                 
                     
                   5-piperidin-1-ylpentanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2R)-2-[(5-methoxy-5-oxopentanoyl)amino]-5-oxo- 
                 
                     
                   5-piperidin-1-ylpentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-(acetyloxy)-3- 
                 
                     
                   (butylsulfonyl)propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl S-butyl-D-cysteinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfinyl)-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-L- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-(butylsulfonyl)-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl 3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   L-alaninate 
                 
                     
                   (1R,2S)-2-amino-1-[(cyclopropylamino)methyl]-3-(3,5- 
                 
                     
                   difluorophenyl)propyl 3-[(1-propylbutyl)sulfonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   methylbutyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(phenoxyacetyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-{[(5-chloro-2- 
                 
                     
                   thienyl)thio]peroxy}-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl N-(phenylsulfonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninate 
                 
                     
                   (1R,2S)-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}-2-(methylamino)propyl N- 
                 
                     
                   [(benzylamino)carbonyl]-3-[(1-propylbutyl)sulfonyl]alaninate 
                 
                     
                   4-{[(1R,2S)-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}-2-(methylamino)propyl]oxy}-4-oxo- 
                 
                     
                   3-{[(1-propylbutyl)sulfonyl]methyl}butanoic acid 
                 
                     
                   4-[((1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}- 
                 
                     
                   3-phenylpropyl)oxy]-3-{[(3-methylbutyl)sulfonyl]methyl}-4- 
                 
                     
                   oxobutanoic acid 
                 
                     
                   1-((1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}- 
                 
                     
                   3-phenylpropyl) 4-methyl 2-{[(3- 
                 
                     
                   methylbutyl)sulfonyl]methyl}succinate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 4-amino-2-{[(3-methylbutyl)sulfonyl]methyl}-4- 
                 
                     
                   oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 4-(methylamino)-2-{[(3- 
                 
                     
                   methylbutyl)sulfonyl]methyl}-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 4-(dimethylamino)-2-{[(3- 
                 
                     
                   methylbutyl)sulfonyl]methyl}-4-oxobutanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(4,4-dimethyl-2,5- 
                 
                     
                   dioxoimidazolidin-1-yl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(4,4-dimethyl-2,5- 
                 
                     
                   dioxoimidazolidin-1-yl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(4,4-dimethyl-2,5- 
                 
                     
                   dioxoimidazolidin-1-yl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanoate 
                 
                     
                   (1R,2R)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 3-(ethylsulfonyl)-2- 
                 
                     
                   {[(isobutylsulfonyl)amino]methyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 3-(ethylthio)-2- 
                 
                     
                   {[(isobutylsulfonyl)amino]methyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2S)-2-{[(3-methylbutyl)sulfonyl]amino}-4- 
                 
                     
                   (methylsulfonyl)butanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl N-[(3-methylbutyl)sulfonyl]-L-methioninate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 3-(acetylthio)-2-{[(3- 
                 
                     
                   methylbutyl)sulfonyl]methyl}propanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-hydroxy-3-[(1-propylbutyl)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-hydroxy-3-[(3-methylbutyl)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-hydroxy-3-[(3- 
                 
                     
                   methoxyphenyl)sulfonyl]propanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 2-hydroxy-4- 
                 
                     
                   (phenylsulfonyl)butanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-hydroxy-4-[(3-methylbutyl)sulfonyl]butanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 4-[(3-methylbutyl)sulfonyl]-2-phenoxybutanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-(3-methoxyphenoxy)-4-[(3- 
                 
                     
                   methylbutyl)sulfonyl]butanoate 
                 
                     
                   3-{1-{[((1R,2S)-2-amino-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}-3-phenylpropyl)oxy]carbonyl}-3- 
                 
                     
                   [(3-methylbutyl)sulfonyl]propoxy}benzoic acid 
                 
                     
                   methyl 3-{1-{[((1R,2S)-2-amino-1-{[(3- 
                 
                     
                   methoxybenzyl)amino]methyl}-3-phenylpropyl)oxy]carbonyl}-3- 
                 
                     
                   [(3-methylbutyl)sulfonyl]propoxy}benzoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-hydroxy-4-(phenylsulfonyl)butanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-hydroxy-4-(phenylthio)butanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-methoxy-4-(phenylsulfonyl)butanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-methoxy-4-(phenylthio)butanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 4-(phenylsulfonyl)-2-propoxybutanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl 2-(benzyloxy)-4-(phenylsulfonyl)butanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl N-[(benzyloxy)carbonyl]methioninate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2S)-2-amino-5-oxo-5-piperidin-1-ylpentanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2S)-2-[(2-methoxy-2-oxoethyl)amino]-5-oxo-5- 
                 
                     
                   piperidin-1-ylpentanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2R)-2-amino-5-oxo-5-piperidin-1-ylpentanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2R)-2-[(2-ethoxy-2-oxoethyl)amino]-5-oxo-5- 
                 
                     
                   piperidin-1-ylpentanoate 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2R)-2-[(4-ethoxy-4-oxobutyl)amino]-5-oxo-5- 
                 
                     
                   piperidin-1-ylpentanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-2- 
                 
                     
                   [(methoxycarbonyl)amino]-4-oxooctanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-butyl-N-(methoxycarbonyl)- 
                 
                     
                   D-homoserinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(2-butyl-1,3-dioxolan-2- 
                 
                     
                   yl)-N-(methoxycarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(2-butyl-1,3-dioxan-2-yl)- 
                 
                     
                   N-(methoxycarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-4,4-difluoro-2- 
                 
                     
                   [(methoxycarbonyl)amino]octanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-4-fluoro-2- 
                 
                     
                   [(methoxycarbonyl)amino]octanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-2- 
                 
                     
                   [(methoxycarbonyl)amino]-5-oxononanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-5-hydroxy-2- 
                 
                     
                   [(methoxycarbonyl)amino]nonanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-4-(2-butyl-1,3- 
                 
                     
                   dioxolan-2-yl)-2-[(methoxycarbonyl)amino]butanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-4-(2-butyl-1,3-dioxan- 
                 
                     
                   2-yl)-2-[(methoxycarbonyl)amino]butanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-5-fluoro-2- 
                 
                     
                   [(methoxycarbonyl)amino]nonanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-5,5-difluoro-2- 
                 
                     
                   [(methoxycarbonyl)amino]nonanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethynylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N- 
                 
                     
                   (methoxycarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-(methoxycarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-(methoxycarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethynylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-(methoxycarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({1-[3- 
                 
                     
                   (trifluoromethyl)phenyl]cyclopropyl}amino)methyl]propyl 3- 
                 
                     
                   (butylsulfonyl)-N-(methoxycarbonyl)-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethynylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-[(3- 
                 
                     
                   methyl-1H-pyrazol-5-yl)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(3-methyl-1H-pyrazol-5-yl)carbonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(3-methyl-1H-pyrazol-5-yl)carbonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethynylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(3-methyl-1H-pyrazol-5-yl)carbonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({1-[3- 
                 
                     
                   (trifluoromethyl)phenyl]cyclopropyl}amino)methyl]propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(3-methyl-1H-pyrazol-5-yl)carbonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}-4-oxooctanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 4-butyl-N- 
                 
                     
                   [(methylamino)carbonyl]-D-homoserinate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(2-butyl-1,3-dioxolan-2- 
                 
                     
                   yl)-N-[(methylamino)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(2-butyl-1,3-dioxan-2-yl)- 
                 
                     
                   N-[(methylamino)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-4,4-difluoro-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}octanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-4-fluoro-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}octanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}-5-oxononanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-5-hydroxy-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}nonanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-4-(2-butyl-1,3- 
                 
                     
                   dioxolan-2-yl)-2-{[(methylamino)carbonyl]amino}butanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-4-(2-butyl-1,3-dioxan- 
                 
                     
                   2-yl)-2-{[(methylamino)carbonyl]amino}butanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-5-fluoro-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}nonanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl (2R)-5,5-difluoro-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}nonanoate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethynylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N- 
                 
                     
                   [(methylamino)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(methylamino)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(methylamino)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethynylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(methylamino)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({1-[3- 
                 
                     
                   (trifluoromethyl)phenyl]cyclopropyl}amino)methyl]propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(methylamino)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethynylbenzyl)amino]methyl}propyl 3-(butylsulfonyl)-N-[(4- 
                 
                     
                   methyl-1H-pyrazol-1-yl)carbonyl]-D-alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[3- 
                 
                     
                   (trifluoromethyl)benzyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(4-methyl-1H-pyrazol-1-yl)carbonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(4-methyl-1H-pyrazol-1-yl)carbonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-({[1-(3- 
                 
                     
                   ethynylphenyl)cyclopropyl]amino}methyl)propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(4-methyl-1H-pyrazol-1-yl)carbonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-[({1-[3- 
                 
                     
                   (trifluoromethyl)phenyl]cyclopropyl}amino)methyl]propyl 3- 
                 
                     
                   (butylsulfonyl)-N-[(4-methyl-1H-pyrazol-1-yl)carbonyl]-D- 
                 
                     
                   alaninate 
                 
                     
                   benzyl [(1R)-1-{[[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl](3- 
                 
                     
                   ethylbenzyl)amino]carbonyl}-3- 
                 
                     
                   (methylsulfonyl)propyl]carbamate 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-[(1-propylbutyl)sulfonyl]- 
                 
                     
                   N-[(tetrahydro-2H-pyran-4-yloxy)carbonyl]alaninate 
                 
                     
                   S-(3-[[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl](3- 
                 
                     
                   methoxybenzyl)amino]-2-{[(3-methylbutyl)sulfonyl]methyl}-3- 
                 
                     
                   oxopropyl) ethanethioate 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-(3- 
                 
                     
                   methoxybenzyl)-2-(3-methoxyphenoxy)-4-[(3- 
                 
                     
                   methylbutyl)sulfonyl]butanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-ethylbenzyl)-N 2 -(3,3,3- 
                 
                     
                   trifluoropropanoyl)-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-ethylbenzyl)-N 2 - 
                 
                     
                   (trifluoroacetyl)-D-alaninamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2-methoxy- 
                 
                     
                   N-(3-methoxybenzyl)-4-(phenylthio)butanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 2 -(cyclopropylcarbonyl)-N 1 - 
                 
                     
                   (3-ethylbenzyl)-D-alaninamide 
                 
                     
                   β-alanyl-N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-ethylbenzyl)-D- 
                 
                     
                   alaninamide 
                 
                     
                   glycyl-N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-ethylbenzyl)-D- 
                 
                     
                   alaninamide 
                 
                     
                   (1R,2S)-2-amino-1-{[(3-methoxybenzyl)amino]methyl}-3- 
                 
                     
                   phenylpropyl (2R)-2-[(4-ethoxy-4-oxobutyl)amino]-5-oxo-5- 
                 
                     
                   piperidin-1-ylpentanoate 
                 
                     
                   N,N-dimethyl-β-alanyl-N 1 -[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3- 
                 
                     
                   ethylbenzyl)-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-ethylbenzyl)-N 2 - 
                 
                     
                   (methoxyacetyl)-D-alaninamide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(2-butyl-1,3-dioxan-2-yl)- 
                 
                     
                   N-(methoxycarbonyl)-D-alaninate 
                 
                     
                   N 2 -acetyl-N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-methylbutyl)-D- 
                 
                     
                   alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -cyclopropyl-N 2 -(cyclopropylcarbonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 2 -acetyl-N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methylbutyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N-phenylglycyl-N 1 -[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N-acetyl-β-alanyl-N 1 -[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 2 -(chloroacetyl)-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -(methoxyacetyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -(3-methoxypropanoyl)-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 2 -(2,2-dimethylpropanoyl)-N 1 -(3-ethylbenzyl)- 
                 
                     
                   3-[(1-propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -isobutyryl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 2 -acetyl-N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 2 -(cyclopropylcarbonyl)-N 1 -(3-ethylbenzyl)-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -propionyl-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   5-oxo-D-prolyl-N 1 -[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide hydrochloride 
                 
                     
                   5-oxo-L-prolyl-N 1 -[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -[3-(4-oxo-2-thioxo-1,3- 
                 
                     
                   thiazolidin-3-yl)propanoyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -(1H-imidazol-4-ylacetyl)- 
                 
                     
                   3-[(1-propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -(phenylacetyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -(3-phenylpropanoyl)-3- 
                 
                     
                   [(1-propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N-(3-[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-ethylbenzyl)amino]-3-oxo-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propyl)benzamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N 2 - 
                 
                     
                   (cyclopropylacetyl)-N 1 -(3-methoxybenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N 1 -(3- 
                 
                     
                   methoxybenzyl)-N 2 -[(methylsulfonyl)acetyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N 1 -(3- 
                 
                     
                   methoxybenzyl)-N 2 -[(methylthio)acetyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N-(methylsulfonyl)glycyl-N 1 -[(2R,3S)-3-amino-2-hydroxy- 
                 
                     
                   4-phenylbutyl]-N 1 -(3-methoxybenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N 2 -acetyl-N 1 -[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]- 
                 
                     
                   N 1 -(3-methoxybenzyl)-3-(phenylsulfonyl)alaninamide 
                 
                     
                   2-[[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl](3-ethylbenzyl)amino]-1- 
                 
                     
                   [(butylsulfonyl)methyl]-2-oxoethyl acetate 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-S-butyl-N 1 -(3-ethylbenzyl)-D-cysteinamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfinyl)-N 1 -(3-ethylbenzyl)-D- 
                 
                     
                   alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-ethylbenzyl)-D- 
                 
                     
                   alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-ethylbenzyl)-L- 
                 
                     
                   alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-methylbutyl)-D- 
                 
                     
                   alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -[1-(3-ethylphenyl)cyclopropyl]-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-L-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -cyclopropyl-3-[(1-propylbutyl)sulfonyl]-D- 
                 
                     
                   alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-methylbutyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -(phenoxyacetyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 2 -{[(5-chloro-2-thienyl)thio]peroxy}-N 1 -(3- 
                 
                     
                   ethylbenzyl)-3-[(1-propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N 1 -(3-ethylbenzyl)-N 2 -(phenylsulfonyl)-3-[(1- 
                 
                     
                   propylbutyl)sulfonyl]alaninamide 
                 
                     
                   N 2 -[(benzylamino)carbonyl]-N 1 -[(2R,3S)-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxy-3-(methylamino)butyl]-N 1 -(3- 
                 
                     
                   ethylbenzyl)-3-[(1-propylbutyl)sulfonyl]alaninamide 
                 
                     
                   4-[[(2R,3S)-4-(3,5-difluorophenyl)-2-hydroxy-3- 
                 
                     
                   (methylamino)butyl](3-ethylbenzyl)amino]-4-oxo-3-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}butanoic acid 
                 
                     
                   4-[[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl](3- 
                 
                     
                   methoxybenzyl)amino]-3-{[(3-methylbutyl)sulfonyl]methyl}-4- 
                 
                     
                   oxobutanoic acid 
                 
                     
                   methyl 4-[[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl](3- 
                 
                     
                   methoxybenzyl)amino]-3-{[(3-methylbutyl)sulfonyl]methyl}-4- 
                 
                     
                   oxobutanoate 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N 1 -(3- 
                 
                     
                   methoxybenzyl)-2-{[(3- 
                 
                     
                   methylbutyl)sulfonyl]methyl}succinamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N 1 -(3- 
                 
                     
                   methoxybenzyl)-N 4 -methyl-2-{[(3- 
                 
                     
                   methylbutyl)sulfonyl]methyl}succinamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N 1 -(3- 
                 
                     
                   methoxybenzyl)-N 4 ,N 4 -dimethyl-2-{[(3- 
                 
                     
                   methylbutyl)sulfonyl]methyl}succinamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(4,4-dimethyl-2,5-dioxoimidazolidin-1-yl)-N- 
                 
                     
                   (3-ethylbenzyl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(4,4-dimethyl-2,5-dioxoimidazolidin-1-yl)-N- 
                 
                     
                   (3-ethylbenzyl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanamide 
                 
                     
                   (1R,2S)-2-amino-3-(3,5-difluorophenyl)-1-{[(3- 
                 
                     
                   ethylbenzyl)amino]methyl}propyl 3-(4,4-dimethyl-2,5- 
                 
                     
                   dioxoimidazolidin-1-yl)-2-{[(1- 
                 
                     
                   propylbutyl)sulfonyl]methyl}propanoate 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-3- 
                 
                     
                   (ethylsulfonyl)-2-{[(isobutylsulfonyl)amino]methyl}-N-(3- 
                 
                     
                   methoxybenzyl)propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-3- 
                 
                     
                   (ethylthio)-2-{[(isobutylsulfonyl)amino]methyl}-N-(3- 
                 
                     
                   methoxybenzyl)propanamide 
                 
                     
                   (2S)—N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-(3- 
                 
                     
                   methoxybenzyl)-2-{[(3-methylbutyl)sulfonyl]amino}-4- 
                 
                     
                   (methylsulfonyl)butanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N 1 -(3- 
                 
                     
                   methoxybenzyl)-N 2 -[(3-methylbutyl)sulfonyl]-L-methioninamide 
                 
                     
                   S-(3-[[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl](3- 
                 
                     
                   methoxybenzyl)amino]-2-{[(3-methylbutyl)sulfonyl]methyl}-3- 
                 
                     
                   oxopropyl) ethanethioate 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2-hydroxy- 
                 
                     
                   N-(3-methoxybenzyl)-3-[(1-propylbutyl)sulfonyl]propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2-hydroxy- 
                 
                     
                   N-(3-methoxybenzyl)-3-[(3-methylbutyl)sulfonyl]propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2-hydroxy- 
                 
                     
                   N-(3-methoxybenzyl)-3-[(3-methoxyphenyl)sulfonyl]propanamide 
                 
                     
                   N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2-hydroxy-4- 
                 
                     
                   (phenylsulfonyl)butanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2-hydroxy- 
                 
                     
                   N-(3-methoxybenzyl)-4-[(3-methylbutyl)sulfonyl]butanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-(3- 
                 
                     
                   methoxybenzyl)-4-[(3-methylbutyl)sulfonyl]-2- 
                 
                     
                   phenoxybutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-(3- 
                 
                     
                   methoxybenzyl)-2-(3-methoxyphenoxy)-4-[(3- 
                 
                     
                   methylbutyl)sulfonyl]butanamide 
                 
                     
                   3-{1-{[[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl](3- 
                 
                     
                   methoxybenzyl)amino]carbonyl}-3-[(3- 
                 
                     
                   methylbutyl)sulfonyl]propoxy}benzoic acid 
                 
                     
                   methyl 3-{1-{[[(2R,3S)-3-amino-2-hydroxy-4- 
                 
                     
                   phenylbutyl](3-methoxybenzyl)amino]carbonyl}-3-[(3- 
                 
                     
                   methylbutyl)sulfonyl]propoxy}benzoate 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2-hydroxy- 
                 
                     
                   N-(3-methoxybenzyl)-4-(phenylsulfonyl)butanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2-hydroxy- 
                 
                     
                   N-(3-methoxybenzyl)-4-(phenylthio)butanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2-methoxy- 
                 
                     
                   N-(3-methoxybenzyl)-4-(phenylsulfonyl)butanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2-methoxy- 
                 
                     
                   N-(3-methoxybenzyl)-4-(phenylthio)butanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-N-(3- 
                 
                     
                   methoxybenzyl)-4-(phenylsulfonyl)-2-propoxybutanamide 
                 
                     
                   N-[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-2- 
                 
                     
                   (benzyloxy)-N-(3-methoxybenzyl)-4-(phenylsulfonyl)butanamide 
                 
                     
                   (2S)-2-amino-N-[(2R,3S)-3-amino-2-hydroxy-4- 
                 
                     
                   phenylbutyl]-N-(3-methoxybenzyl)-5-oxo-5-piperidin-1- 
                 
                     
                   ylpentanamide 
                 
                     
                   (2R)-2-amino-N-[(2R,3S)-3-amino-2-hydroxy-4- 
                 
                     
                   phenylbutyl]-N-(3-methoxybenzyl)-5-oxo-5-piperidin-1- 
                 
                     
                   ylpentanamide 
                 
                     
                   methyl ((1R)-1-{[[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl](3- 
                 
                     
                   ethylbenzyl)amino]carbonyl}-3-oxoheptyl)carbamate 
                 
                     
                   methyl ((1R)-1-{[[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl](3- 
                 
                     
                   ethylbenzyl)amino]carbonyl}-3,3-difluoroheptyl)carbamate 
                 
                     
                   methyl ((1R)-1-{[[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl](3- 
                 
                     
                   ethylbenzyl)amino]carbonyl}-3-fluoroheptyl)carbamate 
                 
                     
                   methyl ((1R)-1-{[[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl](3- 
                 
                     
                   ethylbenzyl)amino]carbonyl}-4-oxooctyl)carbamate 
                 
                     
                   methyl ((1R)-1-{[[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl](3- 
                 
                     
                   ethylbenzyl)amino]carbonyl}-4-hydroxyoctyl)carbamate 
                 
                     
                   methyl [(1R)-1-{[[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl](3- 
                 
                     
                   ethylbenzyl)amino]carbonyl}-3-(2-butyl-1,3-dioxolan-2- 
                 
                     
                   yl)propyl]carbamate 
                 
                     
                   methyl [(1R)-1-{[[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl](3- 
                 
                     
                   ethylbenzyl)amino]carbonyl}-3-(2-butyl-1,3-dioxan-2- 
                 
                     
                   yl)propyl]carbamate 
                 
                     
                   methyl ((1R)-1-{[[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl](3- 
                 
                     
                   ethylbenzyl)amino]carbonyl}-4-fluorooctyl)carbamate 
                 
                     
                   methyl ((1R)-1-{[[(2R,3S)-3-amino-4-(3,5- 
                 
                     
                   difluorophenyl)-2-hydroxybutyl](3- 
                 
                     
                   ethylbenzyl)amino]carbonyl}-4,4-difluorooctyl)carbamate 
                 
                     
                   (2R)—N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}-4-oxooctanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-butyl-N 1 -(3-ethylbenzyl)-N 2 - 
                 
                     
                   [(methylamino)carbonyl]-D-homoserinamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(2-butyl-1,3-dioxolan-2-yl)-N 1 -(3- 
                 
                     
                   ethylbenzyl)-N 2 -[(methylamino)carbonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(2-butyl-1,3-dioxan-2-yl)-N 1 -(3- 
                 
                     
                   ethylbenzyl)-N 2 -[(methylamino)carbonyl]-D-alaninamide 
                 
                     
                   (2R)—N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4,4-difluoro-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}octanamide 
                 
                     
                   (2R)—N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-4-fluoro-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}octanamide 
                 
                     
                   (2R)—N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}-5-oxononanamide 
                 
                     
                   (2R)—N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-hydroxy-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}nonanamide 
                 
                     
                   (2R)—N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(2-butyl-1,3-dioxolan-2-yl)-N-(3- 
                 
                     
                   ethylbenzyl)-2-{[(methylamino)carbonyl]amino}butanamide 
                 
                     
                   (2R)—N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-4-(2-butyl-1,3-dioxan-2-yl)-N-(3-ethylbenzyl)- 
                 
                     
                   2-{[(methylamino)carbonyl]amino}butanamide 
                 
                     
                   (2R)—N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5-fluoro-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}nonanamide 
                 
                     
                   (2R)—N-[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-N-(3-ethylbenzyl)-5,5-difluoro-2- 
                 
                     
                   {[(methylamino)carbonyl]amino}nonanamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -(3-ethynylbenzyl)-N 2 - 
                 
                     
                   [(methylamino)carbonyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 2 -[(methylamino)carbonyl]- 
                 
                     
                   N 1 -[3-(trifluoromethyl)benzyl]-D-alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -[1-(3- 
                 
                     
                   ethylphenyl)cyclopropyl]-N 2 -[(methylamino)carbonyl]-D- 
                 
                     
                   alaninamide 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 1 -[1-(3- 
                 
                     
                   ethynylphenyl)cyclopropyl]-N 2 -[(methylamino)carbonyl]-D- 
                 
                     
                   alaninamide, and 
                 
                     
                   N 1 -[(2R,3S)-3-amino-4-(3,5-difluorophenyl)-2- 
                 
                     
                   hydroxybutyl]-3-(butylsulfonyl)-N 2 -[(methylamino)carbonyl]- 
                 
                     
                   N 1 -{1-[3-(trifluoromethyl)phenyl]cyclopropyl}-D-alaninamide. 
                 
                     
                     
                 
             
                
               
               
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         12 . A method of generating a compound of formula (Y): 
       
         
           
           
               
               
           
         
       
       comprising exposing a compound according to  claim 1  to aqueous media, wherein R 1 , R 2 , R 3 , R N  and R C  are as defined in  claim 1 . 
     
     
         13 . The method of  claim 12  wherein the generation of the compound of formula (Y) occurs in vitro. 
     
     
         14 . The method of  claim 12  wherein the generation of the compound of formula (Y) occurs in vivo. 
     
     
         15 . The method of  claim 12  wherein the aqueous media has a pH of about 2 to about 10. 
     
     
         16 . The method of  claim 3  wherein the aqueous media has a pH of about 3 to about 7. 
     
     
         17 . A method for the treatment or prevention of Alzheimer's disease, mild cognitive impairment Down's syndrome, Hereditary Cerebral Hemorrhage with Amyloidosis of the Dutch-Type, cerebral amyloid angiopathy, other degenerative dementias, dementias of mixed vascular and degenerative origin, dementia associated with Parkinson's disease, dementia associated with progressive supranuclear palsy, dementia associated with cortical basal degeneration, diffuse Lewy body type of Alzheimer's disease comprising administering a therapeutically effective amount of a compound or salt according to  claim 1 , to a patient in need thereof. 
     
     
         18 . A method for the treatment or prevention of Alzheimer's disease, mild cognitive impairment Down's syndrome, Hereditary Cerebral Hemorrhage with Amyloidosis of the Dutch-Type, cerebral amyloid angiopathy, other degenerative dementias, dementias of mixed vascular and degenerative origin, dementia associated with Parkinson's disease, dementia associated with progressive supranuclear palsy, dementia associated with cortical basal degeneration, diffuse Lewy body type of Alzheimer's disease comprising administration of a therapeutically effective amount of a compound or salt according to  claim 1 , to a patient in need thereof. 
     
     
         19 . The use of a compound or salt according to  claim 1  for the manufacture of a medicament. 
     
     
         20 . The use of a compound or salt according to  claim 1  for the manufacture of a medicament for use in the treatment or prevention of Alzheimer's disease, mild cognitive impairment Down's syndrome, Hereditary Cerebral Hemorrhage with Amyloidosis of the Dutch-Type, cerebral amyloid angiopathy, other degenerative dementias, dementias of mixed vascular and degenerative origin, dementia associated with Parkinson's disease, dementia associated with progressive supranuclear palsy, dementia associated with cortical basal degeneration, or diffuse Lewy body type of Alzheimer's disease. 
     
     
         21 . A compound according to  claim 1  selected from the group consisting of: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
     
     
         22 . A pharmaceutical composition comprising a compound according to  claims 1  in combination with a physiologically acceptable carrier or excipient.

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