US2020078358A1PendingUtilityA1

Compounds and Methods for Treatment of Visceral Pain

Assignee: ARENA PHARM INCPriority: May 8, 2017Filed: May 8, 2018Published: Mar 12, 2020
Est. expiryMay 8, 2037(~10.8 yrs left)· nominal 20-yr term from priority
A61K 31/4439A61K 31/675A61P 1/00A61K 31/497A61K 31/416A61P 29/00C07D 403/04C07B 2200/13
47
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Claims

Abstract

The present invention relates to certain compounds of Formula Ia and pharmaceutical compositions thereof and their use in methods for the alleviation and/or treatment of visceral pain, for example abdominal pain; pelvic pain; male pelvic pain; pain from an internal organ; bladder pain; painful bladder syndrome; post-surgical abdominal pain (e.g., GI resection, hysterectomy, oophorectomy, C-section, and the like); or pain arising from or related to: pancreatitis (e.g., chronic pancreatitis), prostatitis (e.g., chronic prostatitis), inflammatory bowel disease (e.g., Crohn's disease), endometriosis, interstitial cystitis, prostatitis (e.g., chronic prostatitis), epididymitis (e.g., chronic epididymitis), or post-surgical abdominal lesions. In some embodiments, the visceral pain is consequent to inflammatory bowel disease, for example Crohn's disease.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method for treating or alleviating visceral pain in a patient in need of such treatment, comprising administering to the patient a therapeutically effective amount of a compound selected from compounds of Formula Ia and pharmaceutically acceptable salts and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 R 1 , R 2 , R 3 , R 4 , R 5 , and R 6  are each independently selected from: H and C 1 -C 6  alkyl; 
 X is NR 7  and Y is CC(O)N(R 8 )R 9 ; or 
 X is CC(O)N(R 8 )R 9  and Y is NR 7 ; 
 R 7  is —R 10 —R 11 —R 12 —R 13 ; wherein: 
 R 10  is selected from: C 1 -C 6  alkylene, heteroarylene, and heterocyclylene; or R 10  is absent; 
 R 11  is selected from: —C(O)NH— and C 1 -C 6  alkylene; or R 11  is absent; 
 R 12  is C 1 -C 6  alkylene; or R 12  is absent; and 
 R 13  is selected from: C 1 -C 6  alkyl, aryl, C 3 -C 7  cycloalkyl, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl, aryl, and heteroaryl are each optionally substituted with one or two substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylsulfonyl, amino, C 3 -C 7  cycloalkyl, cyano, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkyl, halogen, and hydroxyl; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene, C 3 -C 7  cycloalkenylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said C 1 -C 6  alkylene and heterocyclylene are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 3 -C 7  cycloalkyl, aryl, carboxy, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl and aryl are optionally substituted with one substituent selected from: C 1 -C 6  alkoxy, aryl, halogen, heteroaryl, and hydroxyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH—, —C(O)—, —C(O)O—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with C 1 -C 6  alkyl; or R 15  is absent; 
 R 16  is C 1 -C 6  alkylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, amino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 1 -C 6  alkylsulfonyl, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heterocyclyl, and hydroxyl; and 
 R 9  is selected from H, C 1 -C 6  alkyl, and C 3 -C 7  cycloalkyl; or 
 R 8  and R 9  together with the nitrogen atom to which they are both bonded form a group selected from: heterocyclyl and heterobicyclyl, each optionally substituted with one or more substituents selected from: Carbo-C 1 -C 6 -alkoxy, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, aryl, carbo-C 1 -C 6 -alkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heteroaryloxy, heterocyclyl, and hydroxyl; wherein said aryl, C 1 -C 6  alkyl, and heteroaryl are optionally substituted with one substituent selected from: C 3 -C 7  cycloalkyl, C 1 -C 6  alkoxy, halogen, and hydroxyl. 
 
       
     
     
         2 . The method according to  claim 1 , wherein:
 R 15  is selected from: —C(O)NH—, —C(O)—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with C 1 -C 6  alkyl; or R 15  is absent; and   R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 1 -C 6  alkylsulfonyl, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heterocyclyl, and hydroxyl.   
     
     
         3 . The method according to  claim 1 , wherein the compound of Formula Ia is selected from compounds of Formula Ic and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 R 1  and R 6  are each independently selected from: H, and C 1 -C 6  alkyl; 
 X is NR 7  and Y is CC(O)N(R 8 )R 9 ; or 
 X is CC(O)N(R 8 )R 9  and Y is NR 7 ; 
 R 7  is —R 10 —R 11 -R 12 —R 13 ; wherein: 
 R 10  is selected from: C 1 -C 6  alkylene, heteroarylene, and heterocyclylene; or R 10  is absent; 
 R 11  is selected from: —C(O)NH— and C 1 -C 6  alkylene; or R 11  is absent; 
 R 12  is C 1 -C 6  alkylene; or R 12  is absent; and 
 R 13  is selected from: C 1 -C 6  alkyl, aryl, C 3 -C 7  cycloalkyl, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl, aryl, and heteroaryl are each optionally substituted with one or two substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylsulfonyl, amino, C 3 -C 7  cycloalkyl, cyano, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkyl, halogen, and hydroxyl; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene, C 3 -C 7  cycloalkenylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said C 1 -C 6  alkylene and heterocyclylene are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 3 -C 7  cycloalkyl, aryl, carboxy, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl and aryl are optionally substituted with one substituent selected from: C 1 -C 6  alkoxy, aryl, halogen, heteroaryl, and hydroxyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH—, —C(O)—, —C(O)O—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with C 1 -C 6  alkyl; or R 15  is absent; 
 R 16  is C 1 -C 6  alkylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, amino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 1 -C 6  alkylsulfonyl, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heterocyclyl, and hydroxyl; and 
 R 9  is selected from H, C 1 -C 6  alkyl, and C 3 -C 7  cycloalkyl; or 
 R 8  and R 9  together with the nitrogen atom to which they are both bonded form a group selected from: heterocyclyl and heterobicyclyl, each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkyl, aryl, carbo-C 1 -C 6 -alkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heteroaryloxy, heterocyclyl, and hydroxyl; 
 
         wherein said aryl, C 1 -C 6  alkyl, and heteroaryl are optionally substituted with one substituent selected from: C 3 -C 7  cycloalkyl, C 1 -C 6  alkoxy, halogen, and hydroxyl. 
       
     
     
         4 . The method according to  claim 1 , wherein the compound of Formula Ia is selected from compounds of Formula Id and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 X is NR 7  and Y is CC(O)NHR 8 ; or 
 X is CC(O)NHR 8  and Y is NR 7 ; 
 R 7  is selected from: aryl and heteroaryl; wherein said aryl and heteroaryl are each optionally substituted with one or two substituents selected from: cyano and halogen; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene and C 3 -C 7  cycloalkylene; wherein said C 1 -C 6  alkylene is optionally substituted with one or more substituents selected from: C 1 -C 6  alkyl, aryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl is optionally substituted with one substituent selected from: halogen, and hydroxyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH— and —C(O)O—; or R 15  is absent; 
 R 16  is C 1 -C 6  alkylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, amino, aryl, carboxy, cyano, C 1 -C 6  haloalkyl, heteroaryl, hydroxyl, and phosphonooxy; wherein said aryl is optionally substituted with one hydroxyl group. 
 
       
     
     
         5 . The method according to  claim 1 , wherein the compound of Formula Ia is selected from compounds of Formula Id and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 X is NR 7  and Y is CC(O)NHR 8 ; or 
 X is CC(O)NHR 8  and Y is NR 7 ; 
 R 7  is selected from: aryl and heteroaryl; wherein said aryl and heteroaryl are each optionally substituted with one or two substituents selected from: fluoro, chloro, and cyano; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene and C 3 -C 7  cycloalkylene; wherein said C 1 -C 6  alkylene is optionally substituted with one or more substituents selected from: tetrahydro-2H-pyranyl, hydroxyl, 2,2,2-trifluoroethyl, and fluoromethyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH— and —C(O)O—; or R 15  is absent; 
 R 16  is selected from: methylene, isopropyl-methylene, and propylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 1 -C 6  haloalkyl, heteroaryl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said aryl and C 3 -C 7  cycloalkyl are each optionally substituted with one or more substituents selected from hydroxyl and trifluoromethyl. 
 
       
     
     
         6 . The method according to  claim 1 , wherein the compound of Formula Ia is selected from compounds of Formula Id and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 X is NR 7  and Y is CC(O)NHR 8 ; or 
 X is CC(O)NHR 8  and Y is NR 7 ; 
 R 7  is selected from: 2,4-difluoro-phenyl, 2,4-dichloro-phenyl, 5-chloro-pyridin-2-yl, 5-cyano-pyrazin-2-yl, pyrazin-2-yl, 5-fluoro-pyridin-2-yl, 4-chloro-pyridin-2-yl, 4-fluoro-pyridin-2-yl, 4-cyano-pyridin-2-yl, and 4-oxy-pyrazin-2-yl; and 
 R 8  is selected from: 1-hydroxymethyl-2,2-dimethyl-propyl, 2-hydroxy-1,1-dimethyl-ethyl, 1-hydroxymethyl-cyclopropyl, 2-hydroxy-indan-1-yl, 1-hydroxymethyl-cyclobutyl, tert-butyl, 2-hydroxy-1-phenyl-ethyl, 2-hydroxy-1-hydroxymethyl-1-methyl-ethyl, tert-butylamino, 2,2,2-trifluoro-1,1-dimethyl-ethyl, 2-methyl-1-(phosphonooxy)propan-2-yl, 1-methyl-cyclobutyl, 1-hydroxymethyl-2-methyl-propyl, cyano-dimethyl-methyl, 2,2-dimethyl-1-(methylcarbamoyl)-propyl, 3,3-dimethyl-1-(phosphonooxy)butan-2-yl, 2-hydroxy-1-tetrahydro-pyran-4-yl-ethyl, 1,2-dimethyl-propyl, 1-pyridin-2-yl-cyclobutyl, 2-(methylamino)-2-oxo-1-phenylethyl, 2,2-dimethyl-1-pyridin-2-yl-propyl, 1-methoxy-3,3-dimethyl-1-oxobutan-2-yl, 1-(2-amino-3-methylbutanoyloxy)-3-methylbutan-2-yl, 1-(4-carboxybutanoyloxy)-3-methylbutan-2-yl, 3,3,3-trifluoro-1-hydroxymethyl-propyl, 2-fluoro-1,1-dimethyl-ethyl, 2-fluoro-1-fluoromethyl-1-hydroxymethyl-ethyl, 1-fluoromethyl-2,2-dimethyl-propyl, 1-fluoromethyl-cyclobutyl, 1-trifluoromethyl-cyclopropyl, and 1-trifluoromethyl-cyclobutyl. 
 
       
     
     
         7 . The method according to  claim 1 , wherein the compound of Formula Ia is selected from compounds of Formula Ie and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 R 7  is —R 10 —R 11 —R 12 —R 13 ; wherein: 
 R 10  is selected from: 1,1-dimethylethylene, 1,1-dimethylmethylene, ethylene, methylene, 1,4-piperidinylene, 2,5-pyrazinylene, and 2,4-pyridinylene; or R 10  is absent; 
 R 11  is selected from: —C(O)NH— and methylene; or R 11  is absent; 
 R 12  is methylene; or R 12  is absent; and 
 R 13  is selected from: C 1 -C 6  alkyl, aryl, C 3 -C 7  cycloalkyl, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl, aryl, and heteroaryl are each optionally substituted with one or two substituents selected from: fluoro, bromo, chloro, methoxy, cyano, methyl, tert-butyl, isopropyl, hydroxyl, ethyl, heptafluoropropyl, cyclobutyl, trifluoromethyl, cyclopropyl, dimethylamino, methoxy, ethoxy, methylamino, propyl, amino, and methanesulfonyl; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene, C 3 -C 7  cycloalkenylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said C 1 -C 6  alkylene and heterocyclylene are each optionally substituted with one or more substituents selected from: methyl, tert-butyl, ethyl, tetrahydro-2H-pyranyl, isopropyl, benzyl, pyridinyl, hydroxymethyl, 4-fluoro-phenyl, tert-butoxycarbonyl, carboxy, methoxymethyl, hydroxyethyl, tetrahydro-furanyl, 3H-imidazolylmethyl, hydroxyl, pyrrolidinyl, and cyclopropyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH—, —C(O)—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with methyl; or R 15  is absent; 
 R 16  is selected from: ethylene and methylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: amino, 1-tert-butoxycarbonylamino, methyl, 1-tert-butoxycarbonyl, ethyl, hydroxyl, isopropyl, tert-butyl, fluoro, chloro, methoxy, methanesulfonyl, carboxy, trifluoromethoxy, difluoromethoxy, dimethylamino, methoxycarbonyl, ethoxycarbonyl, carboxy, carboxamide, trifluoromethyl, diethylamino, cyano, tert-butylamino, cyclopropyl, cyclobutyl, phenyl, bromo, and 1-methyl-pyrrolidinyl; and 
 R 9  is selected from H, C 1 -C 6  alkyl, and C 3 -C 7  cycloalkyl; or 
 R 8  and R 9  together with the nitrogen atom to which they are both bonded form a group selected from: heterocyclyl and heterobicyclyl, each optionally substituted with one or more substituents selected from: carbo-C 1 -C 6 -alkoxy, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, aryl, carbo-C 1 -C 6 -alkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heteroaryloxy, heterocyclyl, and hydroxyl; wherein said aryl, C 1 -C 6  alkyl, and heteroaryl are optionally substituted with one substituent selected from: C 3 -C 7  cycloalkyl, C 1 -C 6  alkoxy, halogen, and hydroxyl. 
 
       
     
     
         8 . The method of  claim 1 , wherein the compound of Formula Ia is selected from the following compounds and pharmaceutically acceptable salts, and N-oxides thereof:
 (1aR,5aR)-2-(5-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-(2,4-Dichloro-phenyl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-hydroxymethyl-cyclopropyl)-amide;   (1aR,5aR)-2-(5-Cyano-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-(5-Fluoro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-(2,4-Difluoro-phenyl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   1-(2,4-Difluoro-phenyl)-3b,4,4a,5-tetrahydro-1H-cyclopropa[3,4]cyclopenta[1,2-c]pyrazole-3-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid tert-butylamide;   (1aR,5aR)-2-(4-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (cyano-dimethyl-methyl)-amide;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide;   (1aR,5aR)-2-(4-Cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   Phosphoric acid mono-(2-{[(1aR,5aR)-2-(4-cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-2-methyl-propyl) ester;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid [2,2-dimethyl-1-((S)-methylcarbamoyl)-propyl]-amide;   Phosphoric acid mono-{(S)-3,3-dimethyl-2-[((1aR,5aR)-2-pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl)-amino]-butyl} ester;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2-hydroxy-1-tetrahydro-pyran-4-yl-ethyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2-methyl-propyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-hydroxymethyl-cyclobutyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-pyridin-2-yl-cyclobutyl)-amide;   Phosphoric acid mono-((S)-3,3-dimethyl-2-{[(1aR,5aR)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyl) ester;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2,2-dimethyl-1-methylcarbamoyl-propyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-methylcarbamoyl-phenyl-methyl)-amide;   (S)-3,3-Dimethyl-2-{[(1aR,5aR)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyric acid methyl ester;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclopropyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclobutyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((R)-2,2-dimethyl-1-pyridin-2-yl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2,2-dimethyl-1-pyridin-2-yl-propyl)-amide;   (1aR,5aR)-2-(4-Cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1-hydroxymethyl-1-methyl-ethyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-methyl-cyclobutyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((R)-1,2-dimethyl-propyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid [(S)-2-hydroxy-1-(tetrahydro-pyran-4-yl)-ethyl]-amide;   (1aR,5aR)-Pentanedioic acid mono-((S)-3-methyl-2-{[(1aR,5aR)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyl) ester;   (1aS,5aS)-(S)-2-Amino-3-methyl-butyric acid (S)-3,3-dimethyl-2-{[2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyl ester;   (1aS,5aS)-2-(4-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-fluoro-1-fluoromethyl-1-hydroxymethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-3,3,3-trifluoro-1-hydroxymethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2-methyl-propyl)-amide;   (1aS,5aS)-2-(4-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-fluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid N′-tert-butyl-hydrazide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-fluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((R)-1,2-dimethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2-hydroxy-1-phenyl-ethyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-fluoromethyl-2,2-dimethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2,2,2-trifluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((1S,2S)-2-hydroxy-indan-1-yl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((1S,2R)-2-hydroxy-indan-1-yl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-fluoromethyl-cyclobutyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclobutyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2,2,2-trifluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclopropyl)-amide; and   (1aR,5aR)-2-(4-Fluoro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide.   
     
     
         9 . The method of  claim 1 , wherein the compound of Formula Ia is (1aS,5aS)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide, (Compound A) having the structure: 
       
         
           
           
               
               
           
         
         or a pharmaceutically acceptable salt or crystal form thereof. 
       
     
     
         10 . The method of any one of  claims 1  to  9 , wherein the visceral pain is abdominal pain, pelvic pain, pain arising from or related to an internal organ, painful bladder syndrone, pancreatitis, chronic pancreatitis, inflammatory bowel disease, endometriosis, interstitial cystitis, interstitial cystitis induced by chemotherapy, ulcerative interstitial cystitis, nonulcerative interstitial cystitis, autoimmune interstitial cystitis, prostatitis, chronic prostatitis, or post-surgical abdominal lesion. 
     
     
         11 . The method of any one of  claims 1 - 9 , wherein the visceral pain is pain arising from or related to inflammatory bowel disease. 
     
     
         12 . The method of any one of  claims 1 - 9 , wherein the visceral pain is pain arising from or related to Crohn's disease. 
     
     
         13 . The method of  claim 12 , where the patient is in remission for Crohn's disease. 
     
     
         14 . The method of  claim 12 , where the patient is in remission for Crohn's disease and has chronic visceral pain. 
     
     
         15 . The method of  claim 11 , where the patient has previously been treated with an opioid analgesic for pain arising from or related to inflammatory bowel disease. 
     
     
         16 . The method of  claim 12 , where the patient has previously been treated with an opioid analgesic for pain arising from or related to Crohn's disease. 
     
     
         17 . The method according to any one of  claims 1  to  16 , wherein the patient is administered a dose from 10 mg to 500 mg of Compound A. 
     
     
         18 . The method according to any one of  claims 1  to  16 , wherein the patient is administered a dose from 10 mg to 400 mg of Compound A. 
     
     
         19 . The method according to any one of  claims 1  to  16 , wherein the patient is administered a dose of 25 mg, 50 mg, or 100 mg of Compound A. 
     
     
         20 . The method accordingly to any one of  claims 17  to  19 , wherein the dose is administered once, twice, or three times per day. 
     
     
         21 . The method according to any one of  claims 9  to  20 , wherein the Compound A is administered in an anhydrous, non-solvated crystalline form. 
     
     
         22 . The method of  claim 21 , wherein the Compound A displays:
 (i) a powder X-ray diffraction pattern comprising peaks, in terms of 2θ, at 8.5°±0.2°, 10.7°±0.2°, and 16.9°±0.2°;
 a differential scanning calorimetry thermogram comprising an endotherm with an extrapolated onset temperature between about 160.6° C. and about 168.6° C.; and/or 
 a thermogravimetric analysis profile showing about 0.25% weight loss below about 135° C.; 
   or   (ii) a powder X-ray diffraction pattern comprising peaks, in terms of 2θ, at 8.5°±0.2°, 10.7°±0.2°, 16.9°±0.2°, 25.4°±0.2°, and 11.1°±0.2°;
 a differential scanning calorimetry thermogram comprising an endotherm with an extrapolated onset temperature between about 162.6° C. and about 166.6° C.; and/or 
 a thermogravimetric analysis profile showing about 0.05% weight loss below about 135° C.; or 
   (iii) a powder X-ray diffraction pattern comprising peaks, in terms of 2θ, at 8.5°±0.2°, 10.7°±0.2°, 16.9°±0.2°, 25.4°±0.2°, 11.1°±0.2°, 9.8°±0.2°, and 17.4°±0.2°;
 a differential scanning calorimetry thermogram comprising an endotherm with an extrapolated onset temperature between about 163.6° C. and about 165.6° C.; and/or 
 a thermogravimetric analysis profile showing about 0.05% weight loss below about 135° C. 
   or   (iv) a powder X-ray diffraction pattern comprising peaks, in terms of 2θ, at 8.5°±0.2°, 10.7°±0.2°, 16.9°±0.2°, 25.4°±0.2°, 11.1°±0.2°, 9.8°±0.2°, and 17.4°±0.2°;
 a differential scanning calorimetry thermogram comprising an endotherm with an extrapolated onset temperature between about 163.6° C. and about 165.6° C.; and/or 
 a thermogravimetric analysis profile showing about 0.05% weight loss below about 135° C. 
   or   (v) a powder X-ray diffraction pattern comprising peaks, in terms of 2θ, at 8.5°±0.2°, 10.7°±0.2°, 16.9°±0.2°, 25.4°±0.2°, 11.1°±0.2°, 9.8°±0.2°, 17.40°±0.2°, 22.1°±0.2°, and 16.5°±0.2°;
 a differential scanning calorimetry thermogram comprising an endotherm with an extrapolated onset temperature at about 164.6° C.; and/or 
 a thermogravimetric analysis profile showing about 0.05% weight loss below about 135° C. 
   
     
     
         23 . The method according to any one of  claims 9  to  22 , wherein the Compound A is administered in a pharmaceutical composition comprising Compound A and a pharmaceutically acceptable carrier. 
     
     
         24 . The method according to  claim 23 , wherein the pharmaceutical composition comprises from 10 mg to 500 mg of Compound A. 
     
     
         25 . The method according to  claim 23 , wherein the pharmaceutical composition comprises from 10 mg to 400 mg of Compound A. 
     
     
         26 . The method according to  claim 23 , wherein the pharmaceutical composition comprises 25 mg, 50 mg, or 100 mg of Compound A. 
     
     
         27 . The method according to any one of  claims 23  to  26 , wherein the pharmaceutical composition is administered once, twice, or three times per day. 
     
     
         28 . The method according to any one of  claims 1  to  26 , wherein the patient is administered a pain adjuvant. 
     
     
         29 . The method according to  claim 28 , wherein the pain adjuvant is selected from antidepressants, for example amitriptyline, nortriptyline, venlafaxine, and duloxetine; anti-seizure medications, for example gabapentin, pregabalin, topiramate, lamotrigine, and carbamazepine; muscle relaxants, for example baclofen, cyclobenzaprine, methocarbamol, and diazepam; sleep-inducing medications, for example zopiclone, lorazepam, and temazapam; anti-anxiety medications, for example lorazepam and alprazolam; and botulinum toxin. 
     
     
         30 . The method according to any one of  claims 1  to  29 , wherein the patient is administered an additional active agent. 
     
     
         31 . The method according to  claim 30 , wherein the additional active agent is selected from analgesic agents, and antidiabetic agents. 
     
     
         32 . A method for selectively activating a CB 2  receptor in a patient experiencing visceral pain, comprising administering to the patient a therapeutically effective amount of a compound selected from compounds of Formula Ia and pharmaceutically acceptable salts and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 R 1 , R 2 , R 3 , R 4 , R 5 , and R 6  are each independently selected from: H and C 1 -C 6  alkyl; 
 X is NR 7  and Y is CC(O)N(R 8 )R 9 ; or 
 X is CC(O)N(R 8 )R 9  and Y is NR 7 ; 
 R 7  is —R 10 —R 11 —R 12 —R 13 ; wherein: 
 R 10  is selected from: C 1 -C 6  alkylene, heteroarylene, and heterocyclylene; or R 10  is absent; 
 R 11  is selected from: —C(O)NH— and C 1 -C 6  alkylene; or R 11  is absent; 
 R 12  is C 1 -C 6  alkylene; or R 12  is absent; and 
 R 13  is selected from: C 1 -C 6  alkyl, aryl, C 3 -C 7  cycloalkyl, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl, aryl, and heteroaryl are each optionally substituted with one or two substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylsulfonyl, amino, C 3 -C 7  cycloalkyl, cyano, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkyl, halogen, and hydroxyl; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene, C 3 -C 7  cycloalkenylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said C 1 -C 6  alkylene and heterocyclylene are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 3 -C 7  cycloalkyl, aryl, carboxy, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl and aryl are optionally substituted with one substituent selected from: C 1 -C 6  alkoxy, aryl, halogen, heteroaryl, and hydroxyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH—, —C(O)—, —C(O)O—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with C 1 -C 6  alkyl; or R 15  is absent; 
 R 16  is C 1 -C 6  alkylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, amino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 1 -C 6  alkylsulfonyl, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heterocyclyl, and hydroxyl; and 
 R 9  is selected from H, C 1 -C 6  alkyl, and C 3 -C 7  cycloalkyl; or 
 R 8  and R 9  together with the nitrogen atom to which they are both bonded form a group selected from: heterocyclyl and heterobicyclyl, each optionally substituted with one or more substituents selected from: Carbo-C 1 -C 6 -alkoxy, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, aryl, carbo-C 1 -C 6 -alkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heteroaryloxy, heterocyclyl, and hydroxyl; wherein said aryl, C 1 -C 6  alkyl, and heteroaryl are optionally substituted with one substituent selected from: C 3 -C 7  cycloalkyl, C 1 -C 6  alkoxy, halogen, and hydroxyl. 
 
       
     
     
         33 . The method according to  claim 32 , wherein:
 R 15  is selected from: —C(O)NH—, —C(O)—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with C 1 -C 6  alkyl; or R 15  is absent; and   R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 1 -C 6  alkylsulfonyl, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heterocyclyl, and hydroxyl.   
     
     
         34 . The method according to  claim 32 , wherein the compound of Formula Ia is selected from compounds of Formula Ic and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 R 1  and R 6  are each independently selected from: H, and C 1 -C 6  alkyl; 
 X is NR 7  and Y is CC(O)N(R 8 )R 9 ; or 
 X is CC(O)N(R 8 )R 9  and Y is NR 7 ; 
 R 7  is —R 10 —R 11 -R 12 —R 13 ; wherein: 
 R 10  is selected from: C 1 -C 6  alkylene, heteroarylene, and heterocyclylene; or R 10  is absent; 
 R 11  is selected from: —C(O)NH— and C 1 -C 6  alkylene; or R 11  is absent; 
 R 12  is C 1 -C 6  alkylene; or R 12  is absent; and 
 R 13  is selected from: C 1 -C 6  alkyl, aryl, C 3 -C 7  cycloalkyl, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl, aryl, and heteroaryl are each optionally substituted with one or two substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylsulfonyl, amino, C 3 -C 7  cycloalkyl, cyano, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkyl, halogen, and hydroxyl; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene, C 3 -C 7  cycloalkenylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said C 1 -C 6  alkylene and heterocyclylene are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 3 -C 7  cycloalkyl, aryl, carboxy, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl and aryl are optionally substituted with one substituent selected from: C 1 -C 6  alkoxy, aryl, halogen, heteroaryl, and hydroxyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH—, —C(O)—, —C(O)O—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with C 1 -C 6  alkyl; or R 15  is absent; 
 R 16  is C 1 -C 6  alkylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, amino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 1 -C 6  alkylsulfonyl, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heterocyclyl, and hydroxyl; and 
 R 9  is selected from H, C 1 -C 6  alkyl, and C 3 -C 7  cycloalkyl; or 
 R 8  and R 9  together with the nitrogen atom to which they are both bonded form a group selected from: heterocyclyl and heterobicyclyl, each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkyl, aryl, carbo-C 1 -C 6 -alkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heteroaryloxy, heterocyclyl, and hydroxyl; 
 
         wherein said aryl, C 1 -C 6  alkyl, and heteroaryl are optionally substituted with one substituent selected from: C 3 -C 7  cycloalkyl, C 1 -C 6  alkoxy, halogen, and hydroxyl. 
       
     
     
         35 . The method according to  claim 32 , wherein the compound of Formula Ia is selected from compounds of Formula Id and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 X is NR 7  and Y is CC(O)NHR 8 ; or 
 X is CC(O)NHR 8  and Y is NR 7 ; 
 R 7  is selected from: aryl and heteroaryl; wherein said aryl and heteroaryl are each optionally substituted with one or two substituents selected from: cyano and halogen; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene and C 3 -C 7  cycloalkylene; wherein said C 1 -C 6  alkylene is optionally substituted with one or more substituents selected from: C 1 -C 6  alkyl, aryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl is optionally substituted with one substituent selected from: halogen, and hydroxyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH— and —C(O)O—; or R 15  is absent; 
 R 16  is C 1 -C 6  alkylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, amino, aryl, carboxy, cyano, C 1 -C 6  haloalkyl, heteroaryl, hydroxyl, and phosphonooxy; wherein said aryl is optionally substituted with one hydroxyl group. 
 
       
     
     
         36 . The method according to  claim 32 , wherein the compound of Formula Ia is selected from compounds of Formula Id and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 X is NR 7  and Y is CC(O)NHR 8 ; or 
 X is CC(O)NHR 8  and Y is NR 7 ; 
 R 7  is selected from: aryl and heteroaryl; wherein said aryl and heteroaryl are each optionally substituted with one or two substituents selected from: fluoro, chloro, and cyano; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene and C 3 -C 7  cycloalkylene; wherein said C 1 -C 6  alkylene is optionally substituted with one or more substituents selected from: tetrahydro-2H-pyranyl, hydroxyl, 2,2,2-trifluoroethyl, and fluoromethyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH— and —C(O)O—; or R 15  is absent; 
 R 16  is selected from: methylene, isopropyl-methylene, and propylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 1 -C 6  haloalkyl, heteroaryl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said aryl and C 3 -C 7  cycloalkyl are each optionally substituted with one or more substituents selected from hydroxyl and trifluoromethyl. 
 
       
     
     
         37 . The method according to  claim 32 , wherein the compound of Formula Ia is selected from compounds of Formula Id and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 X is NR 7  and Y is CC(O)NHR 8 ; or 
 X is CC(O)NHR 8  and Y is NR 7 ; 
 R 7  is selected from: 2,4-difluoro-phenyl, 2,4-dichloro-phenyl, 5-chloro-pyridin-2-yl, 5-cyano-pyrazin-2-yl, pyrazin-2-yl, 5-fluoro-pyridin-2-yl, 4-chloro-pyridin-2-yl, 4-fluoro-pyridin-2-yl, 4-cyano-pyridin-2-yl, and 4-oxy-pyrazin-2-yl; and 
 R 8  is selected from: 1-hydroxymethyl-2,2-dimethyl-propyl, 2-hydroxy-1,1-dimethyl-ethyl, 1-hydroxymethyl-cyclopropyl, 2-hydroxy-indan-1-yl, 1-hydroxymethyl-cyclobutyl, tert-butyl, 2-hydroxy-1-phenyl-ethyl, 2-hydroxy-1-hydroxymethyl-1-methyl-ethyl, tert-butylamino, 2,2,2-trifluoro-1,1-dimethyl-ethyl, 2-methyl-1-(phosphonooxy)propan-2-yl, 1-methyl-cyclobutyl, 1-hydroxymethyl-2-methyl-propyl, cyano-dimethyl-methyl, 2,2-dimethyl-1-(methylcarbamoyl)-propyl, 3,3-dimethyl-1-(phosphonooxy)butan-2-yl, 2-hydroxy-1-tetrahydro-pyran-4-yl-ethyl, 1,2-dimethyl-propyl, 1-pyridin-2-yl-cyclobutyl, 2-(methylamino)-2-oxo-1-phenylethyl, 2,2-dimethyl-1-pyridin-2-yl-propyl, 1-methoxy-3,3-dimethyl-1-oxobutan-2-yl, 1-(2-amino-3-methylbutanoyloxy)-3-methylbutan-2-yl, 1-(4-carboxybutanoyloxy)-3-methylbutan-2-yl, 3,3,3-trifluoro-1-hydroxymethyl-propyl, 2-fluoro-1,1-dimethyl-ethyl, 2-fluoro-1-fluoromethyl-1-hydroxymethyl-ethyl, 1-fluoromethyl-2,2-dimethyl-propyl, 1-fluoromethyl-cyclobutyl, 1-trifluoromethyl-cyclopropyl, and 1-trifluoromethyl-cyclobutyl. 
 
       
     
     
         38 . The method according to  claim 32 , wherein the compound of Formula Ia is selected from compounds of Formula Ie and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 R 7  is —R 10 —R 11 —R 12 —R 13 ; wherein: 
 R 10  is selected from: 1,1-dimethylethylene, 1,1-dimethylmethylene, ethylene, methylene, 1,4-piperidinylene, 2,5-pyrazinylene, and 2,4-pyridinylene; or R 10  is absent; 
 R 11  is selected from: —C(O)NH— and methylene; or R 11  is absent; 
 R 12  is methylene; or R 12  is absent; and 
 R 13  is selected from: C 1 -C 6  alkyl, aryl, C 3 -C 7  cycloalkyl, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl, aryl, and heteroaryl are each optionally substituted with one or two substituents selected from: fluoro, bromo, chloro, methoxy, cyano, methyl, tert-butyl, isopropyl, hydroxyl, ethyl, heptafluoropropyl, cyclobutyl, trifluoromethyl, cyclopropyl, dimethylamino, methoxy, ethoxy, methylamino, propyl, amino, and methanesulfonyl; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene, C 3 -C 7  cycloalkenylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said C 1 -C 6  alkylene and heterocyclylene are each optionally substituted with one or more substituents selected from: methyl, tert-butyl, ethyl, tetrahydro-2H-pyranyl, isopropyl, benzyl, pyridinyl, hydroxymethyl, 4-fluoro-phenyl, tert-butoxycarbonyl, carboxy, methoxymethyl, hydroxyethyl, tetrahydro-furanyl, 3H-imidazolylmethyl, hydroxyl, pyrrolidinyl, and cyclopropyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH—, —C(O)—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with methyl; or R 15  is absent; 
 R 16  is selected from: ethylene and methylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: amino, 1-tert-butoxycarbonylamino, methyl, 1-tert-butoxycarbonyl, ethyl, hydroxyl, isopropyl, tert-butyl, fluoro, chloro, methoxy, methanesulfonyl, carboxy, trifluoromethoxy, difluoromethoxy, dimethylamino, methoxycarbonyl, ethoxycarbonyl, carboxy, carboxamide, trifluoromethyl, diethylamino, cyano, tert-butylamino, cyclopropyl, cyclobutyl, phenyl, bromo, and 1-methyl-pyrrolidinyl; and 
 R 9  is selected from H, C 1 -C 6  alkyl, and C 3 -C 7  cycloalkyl; or 
 R 8  and R 9  together with the nitrogen atom to which they are both bonded form a group selected from: heterocyclyl and heterobicyclyl, each optionally substituted with one or more substituents selected from: carbo-C 1 -C 6 -alkoxy, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, aryl, carbo-C 1 -C 6 -alkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heteroaryloxy, heterocyclyl, and hydroxyl; wherein said aryl, C 1 -C 6  alkyl, and heteroaryl are optionally substituted with one substituent selected from: C 3 -C 7  cycloalkyl, C 1 -C 6  alkoxy, halogen, and hydroxyl. 
 
       
     
     
         39 . The method of  claim 32 , wherein the compound of Formula Ia is selected from the following compounds and pharmaceutically acceptable salts, and N-oxides thereof:
 (1aR,5aR)-2-(5-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-(2,4-Dichloro-phenyl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-hydroxymethyl-cyclopropyl)-amide;   (1aR,5aR)-2-(5-Cyano-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-(5-Fluoro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-(2,4-Difluoro-phenyl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   1-(2,4-Difluoro-phenyl)-3b,4,4a,5-tetrahydro-1H-cyclopropa[3,4]cyclopenta[1,2-c]pyrazole-3-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid tert-butylamide;   (1aR,5aR)-2-(4-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (cyano-dimethyl-methyl)-amide;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide;   (1aR,5aR)-2-(4-Cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   Phosphoric acid mono-(2-{[(1aR,5aR)-2-(4-cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-2-methyl-propyl) ester;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid [2,2-dimethyl-1-((S)-methylcarbamoyl)-propyl]-amide;   Phosphoric acid mono-{(S)-3,3-dimethyl-2-[((1aR,5aR)-2-pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl)-amino]-butyl} ester;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2-hydroxy-1-tetrahydro-pyran-4-yl-ethyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2-methyl-propyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-hydroxymethyl-cyclobutyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-pyridin-2-yl-cyclobutyl)-amide;   Phosphoric acid mono-((S)-3,3-dimethyl-2-{[(1aR,5aR)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyl) ester;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2,2-dimethyl-1-methylcarbamoyl-propyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-methylcarbamoyl-phenyl-methyl)-amide;   (S)-3,3-Dimethyl-2-{[(1aR,5aR)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyric acid methyl ester;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclopropyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclobutyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((R)-2,2-dimethyl-1-pyridin-2-yl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2,2-dimethyl-1-pyridin-2-yl-propyl)-amide;   (1aR,5aR)-2-(4-Cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1-hydroxymethyl-1-methyl-ethyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-methyl-cyclobutyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((R)-1,2-dimethyl-propyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid [(S)-2-hydroxy-1-(tetrahydro-pyran-4-yl)-ethyl]-amide;   (1aR,5aR)-Pentanedioic acid mono-((S)-3-methyl-2-{[(1aR,5aR)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyl) ester;   (1aS,5aS)-(S)-2-Amino-3-methyl-butyric acid (S)-3,3-dimethyl-2-{[2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyl ester;   (1aS,5aS)-2-(4-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-fluoro-1-fluoromethyl-1-hydroxymethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-3,3,3-trifluoro-1-hydroxymethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2-methyl-propyl)-amide;   (1aS,5aS)-2-(4-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-fluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid N′-tert-butyl-hydrazide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-fluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((R)-1,2-dimethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2-hydroxy-1-phenyl-ethyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-fluoromethyl-2,2-dimethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2,2,2-trifluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((1S,2S)-2-hydroxy-indan-1-yl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((1S,2R)-2-hydroxy-indan-1-yl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-fluoromethyl-cyclobutyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclobutyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2,2,2-trifluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclopropyl)-amide; and   (1aR,5aR)-2-(4-Fluoro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide.   
     
     
         40 . The method of  claim 32 , wherein the compound of Formula Ia is (1aS,5aS)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide, (Compound A) having the structure: 
       
         
           
           
               
               
           
         
       
       or a pharmaceutically acceptable salt or crystal form thereof. 
     
     
         41 . The method of any one of  claims 32  to  40 , wherein the visceral pain is abdominal pain, pelvic pain, pain arising from or related to an internal organ, painful bladder syndrone, pancreatitis, chronic pancreatitis, inflammatory bowel disease, endometriosis, interstitial cystitis, interstitial cystitis induced by chemotherapy, ulcerative interstitial cystitis, nonulcerative interstitial cystitis, autoimmune interstitial cystitis, prostatitis, chronic prostatitis, or post-surgical abdominal lesion. 
     
     
         42 . The method of any one of  claims 32  to  40 , wherein the visceral pain is pain arising from or related to inflammatory bowel disease. 
     
     
         43 . The method of any one of  claims 32  to  40 , wherein the visceral pain is pain arising from or related to Crohn's disease. 
     
     
         44 . The method of  claim 43 , where the patient is in remission for Crohn's disease. 
     
     
         45 . The method of  claim 43 , where the patient is in remission for Crohn's disease and has chronic visceral pain. 
     
     
         46 . The method of  claim 42 , where the patient has previously been treated with an opioid analgesic for pain arising from or related to inflammatory bowel disease. 
     
     
         47 . The method of  claim 43 , where the patient has previously been treated with an opioid analgesic for pain arising from or related to Crohn's disease. 
     
     
         48 . The method according to any one of  claims 32  to  47 , wherein the patient is administered a dose from 10 mg to 500 mg of Compound A. 
     
     
         49 . The method according to any one of  claims 32  to  47 , wherein the patient is administered a dose from 10 mg to 400 mg of Compound A. 
     
     
         50 . The method according to any one of  claims 32  to  47 , wherein the patient is administered a dose of 25 mg, 50 mg, or 100 mg of Compound A. 
     
     
         51 . The method accordingly to any one of  claims 48  to  50 , wherein the dose is administered once, twice, or three times per day. 
     
     
         52 . The method according to any one of  claims 40  to  51 , wherein the Compound A is administered in an anhydrous, non-solvated crystalline form. 
     
     
         53 . The method of  claim 52 , wherein the Compound A displays:
 (i) a powder X-ray diffraction pattern comprising peaks, in terms of 2θ, at 8.5°±0.2°, 10.7°±0.2°, and 16.9°±0.2°;
 a differential scanning calorimetry thermogram comprising an endotherm with an extrapolated onset temperature between about 160.6° C. and about 168.6° C.; and/or 
 a thermogravimetric analysis profile showing about 0.25% weight loss below about 135° C.; 
   or   (ii) a powder X-ray diffraction pattern comprising peaks, in terms of 2θ, at 8.5°±0.2°, 10.7°±0.2°, 16.9°±0.2°, 25.4°±0.2°, and 11.1°±0.2°;
 a differential scanning calorimetry thermogram comprising an endotherm with an extrapolated onset temperature between about 162.6° C. and about 166.6° C.; and/or 
 a thermogravimetric analysis profile showing about 0.05% weight loss below about 135° C.; or 
   (iii) a powder X-ray diffraction pattern comprising peaks, in terms of 2θ, at 8.5°±0.2°, 10.7°±0.2°, 16.9°±0.2°, 25.4°±0.2°, 11.1°±0.2°, 9.8°±0.2°, and 17.4°±0.2°;
 a differential scanning calorimetry thermogram comprising an endotherm with an extrapolated onset temperature between about 163.6° C. and about 165.6° C.; and/or 
 a thermogravimetric analysis profile showing about 0.05% weight loss below about 135° C. 
   or   (iv) a powder X-ray diffraction pattern comprising peaks, in terms of 2θ, at 8.5°±0.2°, 10.7°±0.2°, 16.9°±0.2°, 25.4°±0.2°, 11.1°±0.2°, 9.8°±0.2°, and 17.4°±0.2°;
 a differential scanning calorimetry thermogram comprising an endotherm with an extrapolated onset temperature between about 163.6° C. and about 165.6° C.; and/or 
 a thermogravimetric analysis profile showing about 0.05% weight loss below about 135° C. 
   or   (v) a powder X-ray diffraction pattern comprising peaks, in terms of 2θ, at 8.5°±0.2°, 10.7°±0.2°, 16.9°±0.2°, 25.4°±0.2°, 11.1°±0.2°, 9.8°±0.2°, 17.40°±0.2°, 22.1°±0.2°, and 16.5°±0.2°;
 a differential scanning calorimetry thermogram comprising an endotherm with an extrapolated onset temperature at about 164.6° C.; and/or 
 a thermogravimetric analysis profile showing about 0.05% weight loss below about 135° C. 
   
     
     
         54 . The method according to any one of  claims 40  to  54 , wherein the Compound A is administered in a pharmaceutical composition comprising Compound A and a pharmaceutically acceptable carrier. 
     
     
         55 . The method according to  claim 54 , wherein the pharmaceutical composition comprises from 10 mg to 500 mg of Compound A. 
     
     
         56 . The method according to  claim 54 , wherein the pharmaceutical composition comprises from 10 mg to 400 mg of Compound A. 
     
     
         57 . The method according to  claim 54 , wherein the pharmaceutical composition comprises 25 mg, 50 mg, or 100 mg of Compound A. 
     
     
         58 . The method according to any one of  claims 54  to  57 , wherein the pharmaceutical composition is administered once, twice, or three times per day. 
     
     
         59 . The method according to any one of  claims 32  to  58 , wherein the patient is administered a pain adjuvant. 
     
     
         60 . The method according to  claim 59 , wherein the pain adjuvant is selected from antidepressants, for example amitriptyline, nortriptyline, venlafaxine, and duloxetine; anti-seizure medications, for example gabapentin, pregabalin, topiramate, lamotrigine, and carbamazepine; muscle relaxants, for example baclofen, cyclobenzaprine, methocarbamol, and diazepam; sleep-inducing medications, for example zopiclone, lorazepam, and temazapam; anti-anxiety medications, for example lorazepam and alprazolam; and botulinum toxin. 
     
     
         61 . The method according to any one of  claims 32  to  60 , wherein the patient is administered an additional active agent. 
     
     
         62 . The method according to  claim 61 , wherein the additional active agent is selected from analgesic agents, and antidiabetic agents. 
     
     
         63 . The use of (1aS,5aS)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide, (Compound A) having the structure: 
       
         
           
           
               
               
           
         
       
       or a pharmaceutically acceptable salt or crystal form thereof, in the manufacture of a medicament for the treatment or alleviation of visceral pain. 
     
     
         64 . The use according to  claim 63 , wherein the visceral pain is abdominal pain, pelvic pain, pain arising from or related to an internal organ, painful bladder syndrone, pancreatitis, chronic pancreatitis, inflammatory bowel disease, endometriosis, interstitial cystitis, interstitial cystitis induced by chemotherapy, ulcerative interstitial cystitis, nonulcerative interstitial cystitis, autoimmune interstitial cystitis, prostatitis, chronic prostatitis, or post-surgical abdominal lesion. 
     
     
         65 . The use according to  claim 63 , wherein the visceral pain is pain arising from or related to inflammatory bowel disease. 
     
     
         66 . The use according to  claim 63 , wherein the visceral pain is pain arising from or related to Crohn's disease. 
     
     
         67 . A pharmaceutical composition for alleviation of visceral pain, the composition comprising a therapeutically effective amount of a compound selected from compounds of Formula Ia and pharmaceutically acceptable salts and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 R 1 , R 2 , R 3 , R 4 , R 5 , and R 6  are each independently selected from: H and C 1 -C 6  alkyl; 
 X is NR 7  and Y is CC(O)N(R 8 )R 9 ; or 
 X is CC(O)N(R 8 )R 9  and Y is NR 7 ; 
 R 7  is —R 10 —R 11 —R 12 —R 13 ; wherein: 
 R 10  is selected from: C 1 -C 6  alkylene, heteroarylene, and heterocyclylene; or R 10  is absent; 
 R 11  is selected from: —C(O)NH— and C 1 -C 6  alkylene; or R 11  is absent; 
 R 12  is C 1 -C 6  alkylene; or R 12  is absent; and 
 R 13  is selected from: C 1 -C 6  alkyl, aryl, C 3 -C 7  cycloalkyl, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl, aryl, and heteroaryl are each optionally substituted with one or two substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylsulfonyl, amino, C 3 -C 7  cycloalkyl, cyano, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkyl, halogen, and hydroxyl; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene, C 3 -C 7  cycloalkenylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said C 1 -C 6  alkylene and heterocyclylene are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 3 -C 7  cycloalkyl, aryl, carboxy, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl and aryl are optionally substituted with one substituent selected from: C 1 -C 6  alkoxy, aryl, halogen, heteroaryl, and hydroxyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH—, —C(O)—, —C(O)O—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with C 1 -C 6  alkyl; or R 15  is absent; 
 R 16  is C 1 -C 6  alkylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, amino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 1 -C 6  alkylsulfonyl, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heterocyclyl, and hydroxyl; and 
 R 9  is selected from H, C 1 -C 6  alkyl, and C 3 -C 7  cycloalkyl; or 
 R 8  and R 9  together with the nitrogen atom to which they are both bonded form a group selected from: heterocyclyl and heterobicyclyl, each optionally substituted with one or more substituents selected from: Carbo-C 1 -C 6 -alkoxy, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, aryl, carbo-C 1 -C 6 -alkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heteroaryloxy, heterocyclyl, and hydroxyl; wherein said aryl, C 1 -C 6  alkyl, and heteroaryl are optionally substituted with one substituent selected from: C 3 -C 7  cycloalkyl, C 1 -C 6  alkoxy, halogen, and hydroxyl. 
 
       
     
     
         68 . The composition according to  claim 66 , wherein:
 R 15  is selected from: —C(O)NH—, —C(O)—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with C 1 -C 6  alkyl; or R 15  is absent; and   R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 1 -C 6  alkylsulfonyl, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heterocyclyl, and hydroxyl.   
     
     
         69 . The composition according to  claim 67 , wherein the compound of Formula Ia is selected from compounds of Formula Ic and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 R 1  and R 6  are each independently selected from: H, and C 1 -C 6  alkyl; 
 X is NR 7  and Y is CC(O)N(R 8 )R 9 ; or 
 X is CC(O)N(R 8 )R 9  and Y is NR 7 ; 
 R 7  is —R 10 —R 11 —R 12 —R 13 ; wherein: 
 R 10  is selected from: C 1 -C 6  alkylene, heteroarylene, and heterocyclylene; or R 10  is absent; 
 R 11  is selected from: —C(O)NH— and C 1 -C 6  alkylene; or R 11  is absent; 
 R 12  is C 1 -C 6  alkylene; or R 12  is absent; and 
 R 13  is selected from: C 1 -C 6  alkyl, aryl, C 3 -C 7  cycloalkyl, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl, aryl, and heteroaryl are each optionally substituted with one or two substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylsulfonyl, amino, C 3 -C 7  cycloalkyl, cyano, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkyl, halogen, and hydroxyl; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene, C 3 -C 7  cycloalkenylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said C 1 -C 6  alkylene and heterocyclylene are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 3 -C 7  cycloalkyl, aryl, carboxy, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl and aryl are optionally substituted with one substituent selected from: C 1 -C 6  alkoxy, aryl, halogen, heteroaryl, and hydroxyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH—, —C(O)—, —C(O)O—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with C 1 -C 6  alkyl; or R 15  is absent; 
 R 16  is C 1 -C 6  alkylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, amino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkoxycarbonyl, C 1 -C 6  alkyl, C 1 -C 6  alkylsulfonyl, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 2 -C 8  dialkylamino, C 1 -C 6  haloalkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heterocyclyl, and hydroxyl; and 
 R 9  is selected from H, C 1 -C 6  alkyl, and C 3 -C 7  cycloalkyl; or 
 R 8  and R 9  together with the nitrogen atom to which they are both bonded form a group selected from: heterocyclyl and heterobicyclyl, each optionally substituted with one or more substituents selected from: C 1 -C 6  alkoxy, C 1 -C 6  alkyl, aryl, carbo-C 1 -C 6 -alkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heteroaryloxy, heterocyclyl, and hydroxyl; 
 
         wherein said aryl, C 1 -C 6  alkyl, and heteroaryl are optionally substituted with one substituent selected from: C 3 -C 7  cycloalkyl, C 1 -C 6  alkoxy, halogen, and hydroxyl. 
       
     
     
         70 . The composition according to  claim 67 , wherein the compound of Formula Ia is selected from compounds of Formula Id and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 X is NR 7  and Y is CC(O)NHR 8 ; or 
 X is CC(O)NHR 8  and Y is NR 7 ; 
 R 7  is selected from: aryl and heteroaryl; wherein said aryl and heteroaryl are each optionally substituted with one or two substituents selected from: cyano and halogen; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene and C 3 -C 7  cycloalkylene; wherein said C 1 -C 6  alkylene is optionally substituted with one or more substituents selected from: C 1 -C 6  alkyl, aryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl is optionally substituted with one substituent selected from: halogen, and hydroxyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH— and —C(O)O—; or R 15  is absent; 
 R 16  is C 1 -C 6  alkylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, amino, aryl, carboxy, cyano, C 1 -C 6  haloalkyl, heteroaryl, hydroxyl, and phosphonooxy; wherein said aryl is optionally substituted with one hydroxyl group. 
 
       
     
     
         71 . The composition according to  claim 67 , wherein the compound of Formula Ia is selected from compounds of Formula Id and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 X is NR 7  and Y is CC(O)NHR 8 ; or 
 X is CC(O)NHR 8  and Y is NR 7 ; 
 R 7  is selected from: aryl and heteroaryl; wherein said aryl and heteroaryl are each optionally substituted with one or two substituents selected from: fluoro, chloro, and cyano; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene and C 3 -C 7  cycloalkylene; wherein said C 1 -C 6  alkylene is optionally substituted with one or more substituents selected from: tetrahydro-2H-pyranyl, hydroxyl, 2,2,2-trifluoroethyl, and fluoromethyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH— and —C(O)O—; or R 15  is absent; 
 R 16  is selected from: methylene, isopropyl-methylene, and propylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, amino, aryl, carboxy, cyano, C 3 -C 7  cycloalkyl, C 1 -C 6  haloalkyl, heteroaryl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said aryl and C 3 -C 7  cycloalkyl are each optionally substituted with one or more substituents selected from hydroxyl and trifluoromethyl. 
 
       
     
     
         72 . The composition according to  claim 67 , wherein the compound of Formula Ia is selected from compounds of Formula Id and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 X is NR 7  and Y is CC(O)NHR 8 ; or 
 X is CC(O)NHR 8  and Y is NR 7 ; 
 R 7  is selected from: 2,4-difluoro-phenyl, 2,4-dichloro-phenyl, 5-chloro-pyridin-2-yl, 5-cyano-pyrazin-2-yl, pyrazin-2-yl, 5-fluoro-pyridin-2-yl, 4-chloro-pyridin-2-yl, 4-fluoro-pyridin-2-yl, 4-cyano-pyridin-2-yl, and 4-oxy-pyrazin-2-yl; and 
 R 8  is selected from: 1-hydroxymethyl-2,2-dimethyl-propyl, 2-hydroxy-1,1-dimethyl-ethyl, 1-hydroxymethyl-cyclopropyl, 2-hydroxy-indan-1-yl, 1-hydroxymethyl-cyclobutyl, tert-butyl, 2-hydroxy-1-phenyl-ethyl, 2-hydroxy-1-hydroxymethyl-1-methyl-ethyl, tert-butylamino, 2,2,2-trifluoro-1,1-dimethyl-ethyl, 2-methyl-1-(phosphonooxy)propan-2-yl, 1-methyl-cyclobutyl, 1-hydroxymethyl-2-methyl-propyl, cyano-dimethyl-methyl, 2,2-dimethyl-1-(methylcarbamoyl)-propyl, 3,3-dimethyl-1-(phosphonooxy)butan-2-yl, 2-hydroxy-1-tetrahydro-pyran-4-yl-ethyl, 1,2-dimethyl-propyl, 1-pyridin-2-yl-cyclobutyl, 2-(methylamino)-2-oxo-1-phenylethyl, 2,2-dimethyl-1-pyridin-2-yl-propyl, 1-methoxy-3,3-dimethyl-1-oxobutan-2-yl, 1-(2-amino-3-methylbutanoyloxy)-3-methylbutan-2-yl, 1-(4-carboxybutanoyloxy)-3-methylbutan-2-yl, 3,3,3-trifluoro-1-hydroxymethyl-propyl, 2-fluoro-1,1-dimethyl-ethyl, 2-fluoro-1-fluoromethyl-1-hydroxymethyl-ethyl, 1-fluoromethyl-2,2-dimethyl-propyl, 1-fluoromethyl-cyclobutyl, 1-trifluoromethyl-cyclopropyl, and 1-trifluoromethyl-cyclobutyl. 
 
       
     
     
         73 . The composition according to  claim 67 , wherein the compound of Formula Ia is selected from compounds of Formula Ie and pharmaceutically acceptable salts, and N-oxides thereof: 
       
         
           
           
               
               
           
         
         wherein:
 R 7  is —R 10 —R 11 —R 12 —R 13 ; wherein: 
 R 10  is selected from: 1,1-dimethylethylene, 1,1-dimethylmethylene, ethylene, methylene, 1,4-piperidinylene, 2,5-pyrazinylene, and 2,4-pyridinylene; or R 10  is absent; 
 R 11  is selected from: —C(O)NH— and methylene; or R 11  is absent; 
 R 12  is methylene; or R 12  is absent; and 
 R 13  is selected from: C 1 -C 6  alkyl, aryl, C 3 -C 7  cycloalkyl, heteroaryl, heterocyclyl, and hydroxyl; wherein said C 1 -C 6  alkyl, aryl, and heteroaryl are each optionally substituted with one or two substituents selected from: fluoro, bromo, chloro, methoxy, cyano, methyl, tert-butyl, isopropyl, hydroxyl, ethyl, heptafluoropropyl, cyclobutyl, trifluoromethyl, cyclopropyl, dimethylamino, methoxy, ethoxy, methylamino, propyl, amino, and methanesulfonyl; 
 R 8  is —R 14 —R 15 —R 16 —R 17 ; wherein: 
 R 14  is selected from: C 1 -C 6  alkylene, C 3 -C 7  cycloalkenylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said C 1 -C 6  alkylene and heterocyclylene are each optionally substituted with one or more substituents selected from: methyl, tert-butyl, ethyl, tetrahydro-2H-pyranyl, isopropyl, benzyl, pyridinyl, hydroxymethyl, 4-fluoro-phenyl, tert-butoxycarbonyl, carboxy, methoxymethyl, hydroxyethyl, tetrahydro-furanyl, 3H-imidazolylmethyl, hydroxyl, pyrrolidinyl, and cyclopropyl; or R 14  is absent; 
 R 15  is selected from: —C(O)NH—, —C(O)—, C 1 -C 6  alkylene, C 3 -C 7  cycloalkylene, heteroarylene, and heterocyclylene; wherein said heterocyclylene is optionally substituted with methyl; or R 15  is absent; 
 R 16  is selected from: ethylene and methylene; or R 16  is absent; and 
 R 17  is selected from: H, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, C 1 -C 6  alkylamino, C 1 -C 6  alkylcarboxamide, C 2 -C 6  alkynyl, ureyl, amino, aryl, arylamino, arylcarbonyl, aryloxy, carbo-C 1 -C 6 -alkoxy, carboxamide, carboxy, cyano, C 3 -C 7  cycloalkyl, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkylamino, C 2 -C 8  dialkylamino, C 2 -C 8  dialkylsulfonamide, C 1 -C 6 haloalkyl, heteroaryl, heteroaryloxy, heterobicyclyl, heterocyclyl, hydroxyl, and phosphonooxy; wherein said C 1 -C 6  alkylamino, aryl, arylamino, aryloxy, C 5 -C 11  bicycloalkyl, C 3 -C 7  cycloalkyl, C 3 -C 7  cycloalkylamino, heteroaryl, heterobicyclyl, heterocyclyl, and ureyl are each optionally substituted with one or more substituents selected from: amino, 1-tert-butoxycarbonylamino, methyl, 1-tert-butoxycarbonyl, ethyl, hydroxyl, isopropyl, tert-butyl, fluoro, chloro, methoxy, methanesulfonyl, carboxy, trifluoromethoxy, difluoromethoxy, dimethylamino, methoxycarbonyl, ethoxycarbonyl, carboxy, carboxamide, trifluoromethyl, diethylamino, cyano, tert-butylamino, cyclopropyl, cyclobutyl, phenyl, bromo, and 1-methyl-pyrrolidinyl; and 
 R 9  is selected from H, C 1 -C 6  alkyl, and C 3 -C 7  cycloalkyl; or 
 R 8  and R 9  together with the nitrogen atom to which they are both bonded form a group selected from: heterocyclyl and heterobicyclyl, each optionally substituted with one or more substituents selected from: carbo-C 1 -C 6 -alkoxy, C 1 -C 6  alkoxy, C 1 -C 6  alkyl, aryl, carbo-C 1 -C 6 -alkoxy, C 1 -C 6  haloalkyl, halogen, heteroaryl, heteroaryloxy, heterocyclyl, and hydroxyl; wherein said aryl, C 1 -C 6  alkyl, and heteroaryl are optionally substituted with one substituent selected from: C 3 -C 7  cycloalkyl, C 1 -C 6  alkoxy, halogen, and hydroxyl. 
 
       
     
     
         74 . The composition of  claim 67 , wherein the compound of Formula Ia is selected from the following compounds and pharmaceutically acceptable salts, and N-oxides thereof:
 (1aR,5aR)-2-(5-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-(2,4-Dichloro-phenyl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-hydroxymethyl-cyclopropyl)-amide;   (1aR,5aR)-2-(5-Cyano-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-(5-Fluoro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-(2,4-Difluoro-phenyl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   1-(2,4-Difluoro-phenyl)-3b,4,4a,5-tetrahydro-1H-cyclopropa[3,4]cyclopenta[1,2-c]pyrazole-3-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid tert-butylamide;   (1aR,5aR)-2-(4-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (cyano-dimethyl-methyl)-amide;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide;   (1aR,5aR)-2-(4-Cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide;   Phosphoric acid mono-(2-{[(1aR,5aR)-2-(4-cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-2-methyl-propyl) ester;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid [2,2-dimethyl-1-((S)-methylcarbamoyl)-propyl]-amide;   Phosphoric acid mono-{(S)-3,3-dimethyl-2-[((1aR,5aR)-2-pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl)-amino]-butyl} ester;   (1aR,5aR)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2-hydroxy-1-tetrahydro-pyran-4-yl-ethyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2-methyl-propyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-hydroxymethyl-cyclobutyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-pyridin-2-yl-cyclobutyl)-amide;   Phosphoric acid mono-((S)-3,3-dimethyl-2-{[(1aR,5aR)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyl) ester;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2,2-dimethyl-1-methylcarbamoyl-propyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-methylcarbamoyl-phenyl-methyl)-amide;   (S)-3,3-Dimethyl-2-{[(1aR,5aR)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyric acid methyl ester;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclopropyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclobutyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((R)-2,2-dimethyl-1-pyridin-2-yl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2,2-dimethyl-1-pyridin-2-yl-propyl)-amide;   (1aR,5aR)-2-(4-Cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1-hydroxymethyl-1-methyl-ethyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-methyl-cyclobutyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((R)-1,2-dimethyl-propyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid [(S)-2-hydroxy-1-(tetrahydro-pyran-4-yl)-ethyl]-amide;   (1aR,5aR)-Pentanedioic acid mono-((S)-3-methyl-2-{[(1aR,5aR)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyl) ester;   (1aS,5aS)-(S)-2-Amino-3-methyl-butyric acid (S)-3,3-dimethyl-2-{[2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-butyl ester;   (1aS,5aS)-2-(4-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-fluoro-1-fluoromethyl-1-hydroxymethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Cyano-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-3,3,3-trifluoro-1-hydroxymethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2-methyl-propyl)-amide;   (1aS,5aS)-2-(4-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-fluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid N′-tert-butyl-hydrazide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-fluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((R)-1,2-dimethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-2-hydroxy-1-phenyl-ethyl)-amide;   (1aR,5aR)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-fluoromethyl-2,2-dimethyl-propyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2,2,2-trifluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((1S,2S)-2-hydroxy-indan-1-yl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((1S,2R)-2-hydroxy-indan-1-yl)-amide;   (1aS,5aS)-2-(4-Oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-fluoromethyl-cyclobutyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclobutyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2,2,2-trifluoro-1,1-dimethyl-ethyl)-amide;   (1aS,5aS)-2-Pyrazin-2-yl-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (1-trifluoromethyl-cyclopropyl)-amide; and   (1aR,5aR)-2-(4-Fluoro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide.   
     
     
         75 . The composition of  claim 67 , wherein the compound of Formula Ia is (1aS,5aS)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ((S)-1-hydroxymethyl-2,2-dimethyl-propyl)-amide, (Compound A) having the structure: 
       
         
           
           
               
               
           
         
       
       or a pharmaceutically acceptable salt or crystal form thereof. 
     
     
         76 . The composition according to any one of  claims 67  to  75 , wherein the visceral pain is abdominal pain, pelvic pain, pain arising from or related to an internal organ, painful bladder syndrone, pancreatitis, chronic pancreatitis, inflammatory bowel disease, endometriosis, interstitial cystitis, interstitial cystitis induced by chemotherapy, ulcerative interstitial cystitis, nonulcerative interstitial cystitis, autoimmune interstitial cystitis, prostatitis, chronic prostatitis, or post-surgical abdominal lesion. 
     
     
         77 . The composition according to  claim 76 , wherein the visceral pain is pain arising from or related to inflammatory bowel disease. 
     
     
         78 . The composition according to  claim 76 , wherein the visceral pain is pain arising from or related to Crohn's disease. 
     
     
         79 . The method according to any one of  claims 1  to  62 , the use according to any one of  claims 63  to  66 , or the composition of any one of  claims 67  to  78 , wherein the pain is mild to moderate pain. 
     
     
         80 . The method according to any one of  claims 1  to  62 , the use according to any one of  claims 63  to  66 , or the composition of any one of  claims 67  to  78 , wherein the pain is moderate to moderately severe pain. 
     
     
         81 . The method according to any one of  claims 1  to  62 , the use according to any one of  claims 63  to  66 , or the composition of any one of  claims 67  to  78 , wherein the individual has a visual analogue scale pain score of ≥40 mm. 
     
     
         82 . The method according to any one of  claims 1  to  62 , the use according to any one of  claims 63  to  66 , or the composition of any one of  claims 67  to  78 , wherein the individual has a Likert numerical rating scale pain score of ≥4. 
     
     
         83 . The method according to any one of  claims 1  to  62 , the use according to any one of  claims 63  to  66 , or the composition of any one of  claims 67  to  78 , wherein the pain is moderate to severe pain requiring continuous, around-the-clock opioid therapy for an extended period of time. 
     
     
         84 . The method according to any one of  claims 1  to  62 , the use according to any one of  claims 63  to  66 , or the composition of any one of  claims 67  to  78 , wherein the pain is acute pain. 
     
     
         85 . The method according to any one of  claims 1  to  62 , the use according to any one of  claims 63  to  66 , or the composition of any one of  claims 67  to  78 , wherein the method is for short-term use (five days or less). 
     
     
         86 . The method according to any one of  claims 1  to  62 , the use according to any one of  claims 63  to  66 , or the composition of any one of  claims 67  to  78 , wherein the pain is chronic visceral pain. 
     
     
         87 . The method according to any one of  claims 1  to  62 , the use according to any one of  claims 63  to  66 , or the composition of any one of  claims 67  to  78 , wherein the compound is Compound 699, and the pain is abdominal pain, pelvic pain, pain arising from or related to an internal organ, painful bladder syndrone, pancreatitis, chronic pancreatitis, inflammatory bowel disease, endometriosis, interstitial cystitis, interstitial cystitis induced by chemotherapy, ulcerative interstitial cystitis, nonulcerative interstitial cystitis, autoimmune interstitial cystitis, prostatitis, chronic prostatitis, or post-surgical abdominal lesion. 
     
     
         88 . The method according to any one of  claims 1  to  62 , the use according to any one of  claims 63  to  66 , or the composition of any one of  claims 67  to  78 , wherein the compound is Compound 699, and the pain is pain arising from or related to inflammatory bowel disease. 
     
     
         89 . The method according to any one of  claims 1  to  62 , the use according to any one of  claims 63  to  66 , or the composition of any one of  claims 67  to  78 , wherein the compound is Compound 699, and the pain is pain arising from or related to Crohn's disease.

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