US2013035328A1PendingUtilityA1

Antiviral compounds and methods

Assignee: GAGE PETER WILLIAMPriority: Jun 26, 2003Filed: Jul 19, 2012Published: Feb 7, 2013
Est. expiryJun 26, 2023(expired)· nominal 20-yr term from priority
A61P 31/18A61P 31/00A61P 31/16A61P 31/14A61P 31/12A61P 11/00A61P 1/16A61K 31/15A61K 31/4406A61K 31/381A61K 31/47A61K 31/55C07D 241/34C07C 279/22A61K 45/06A61K 31/4965A61K 31/165Y02A50/30C07D 277/46
47
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Claims

Abstract

The invention relates to compounds having antiviral activity and methods utilizing the compounds to treat viral infections.

Claims

exact text as granted — not AI-modified
1 - 168 . (canceled) 
     
     
         169 . A method for the therapeutic or prophylactic treatment of a subject infected with or exposed to a virus, comprising administering to the subject a compound of Formula I 
       
         
           
           
               
               
           
         
       
       or a pharmaceutically acceptable salt thereof, 
       wherein, 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         R 2 , R 3  and R 4  are independently hydrogen, 
       
       
         
           
           
               
               
           
         
       
       and wherein
 X=hydrogen, hydroxy, nitro, halo, C 1-6 alkyl, C 1-6 alkyloxy, C 3-6 cycloalkyl, halo-substituted C 1-6 alkyl, halo-substituted C 1-6 alkyloxy, phenyl, C 1-6 alkeneyl, C 3-6 cycloalkeneyl, C 1-6 alkeneoxy, or benzo; 
 R a , R b , R c , R d , R e , R f , R h , R k , R l , R m , R n , R o , R p  independently=hydrogen, amino, halo, C 1-5 alkyi, C 1-5 alkyloxy, hydroxy, aryl, substituted aryl, substituted amino, mono or dialkyl-substituted amino, cycloalkyl-substituted amino, aryl-substituted amino, 
 
       
         
           
           
               
               
           
         
       
       or PrS;
 R g , R i  independently=hydrogen, hydroxy, halo, or C 1-5  alkyl; 
 R j =hydrogen, amino, halo, C 1-5 alkyl, C 1-5 alkyloxy, hydroxy, aryl, substituted aryl, substituted amino, alkyl-substituted amino, cycloalkyl-substituted amino, aryl-substituted amino, PrS, 
 
       
         
           
           
               
               
           
         
       
       and wherein
 when R 1  is 
 
       
         
           
           
               
               
           
         
       
       R a  and R c  are amino, and R b  is halo, R 2 , R 3  or R 4  cannot be hydrogen, benzyl or substituted benzyl or BODIPY-Fl;
 when R 1  is C 6 H 5 CH═CH, R 2  is hydrogen and R 3  is phenyl, R 4  cannot be phenyl; 
 when R 1  is phenyl, R 2  is hydrogen, and R 3  is benzoyl, R 4  cannot be benzoyl; 
 when R 1  is phenyl, R 2  is substituted benzyl, R 3  is hydrogen and R 4  is hydrogen, R a , R o  and R p  cannot all be hydrogen; 
 when R 1  is phenyl, R 3  is hydrogen and R 4  is hydrogen, R 2  cannot be benzyl or phenyl; 
 when R 1  is phenyl, R 2  is hydrogen, R 3  cannot be phenyl together with R 4  as benzoyl; and 
 when R 1  is phenyl, R 2  is hydrogen, R 3  and R 4  cannot both be benzyl. 
 
     
     
         170 . The method according to  claim 169  wherein the compound is selected from the group consisting of:
 (2-Bromocinnamoyl)guanidine, 
 (2-Chlorocinnamoyl)guanidine, 
 (2-Furanacryloyl)guanidine, 
 (2-Methoxycinnamoyl)guanidine, 
 (2-Nitrocinnamoyl)guanidine, 
 (3-Bromocinnamoyl)guanidine, 
 (3 -Chlorocinnamoyl)guanidine, 
 (3 -Methoxycinnamoyl)guanidine, 
 (3-Nitrocinnamoyl)guanidine, 
 (3-phenylpropanoyl)guanidine, 
 (4-Bromocinnamoyl)guanidine, 
 (4-Chlorocinnamoyl)guanidine, 
 (4-Hydroxycinnamoyl)guanidine, 
 (4-Methoxycinnamoyl)guanidine, 
 (4-Phenoxybenzoyl)guanidine, 
 (5-Phenyl-penta-2,4-dienoyl)guanidine, 
 (a-Methylcinnamoyl)guanidine, 
 (Phenylacetyl)guanidine, 
 (Quinoline-2-carbonyl)guanidine, 
 (trans-2-Phenylcyclopropanecarbonyl)guanidine, 
 [(4-Chlorophenoxy-acetyl]guanidine, 
 [(E)-3-(4-Dimethylaminophenyl)-2-methylacryloyl]guanidine, 
 [3-(3-Pyridyl)acryloyl]guanidine, 
 1-bromo-2-naphthoylguanidine, 
 1-naphthoylguanidine, 
 2-(1-naphthyl)acetoylguanidine, 
 2-(2-naphthyl)acetoylguanidine, 
 2-(cyclohex-1-en-lyl)cinnamoylguanidine, 
 2-(trifiuoromethyl)cinnamoylguanidine, 
 2,3,5,6,-tetramethylcinnamoylguanidine, 
 2,3-difiuorocinnamoylguanidine, 
 2,3-dimethylcinnamoylguanidine, 
 2,4,6-trimethylcinnamoylguanidine, 
 2,4-dichlorocinnamolyguanidine, 
 2,5-dimethylcinnamoylguanidine, 
 2,6-dichlorocinnamoylguanidine, 
 2′4 DichloroBenazamil HCl, 
 2-chloro-6-fluorocinnamoylguanidine, 
 2-cyclohexylcinnamoylguanidine, 
 2-ethoxycinnamoylguanidine, 
 2-ethylcinnamoylguanidine, 
 2-fluorocinnamoylguanidine, 
 2-methylcinnamoylguanidine, 
 2-naphthoylguanidine, 
 2-phenylcinnamoylguanidine, 
 2-t-butylcinnamoylguanidine, 
 3-(2-naphthyl)acryloylguanidine, 
 3-(cyclohex-1-en-1-yl)cinnamoylguanidine, 
 3 -(trans-hept-1-en-1-yl)cinnamoylguanidine, 
 3-(trifiuoromethoxy)cinnamoylguanidine, 
 3-(trifluoromethyl)cinnamoylguanidine, 
 3,4-(methylenedioxy)cinnamoylguanidine, 
 3,4,5-trimethoxycinnamoylguanidine, 
 3,4-dichlorocinnamoylguanidine, 
 3,4-difluorocinnamoylguanidine, 
 3-ethoxycinnamoylguanidine, 
 3-fluorocinnamoylguanidine, 
 3-isopropylcinnamoylguanidine hydrochloride, 
 3-methoxy-HMA, 
 3-methoxy-amiloride, 
 3-methylcinnamoylguanidine, 
 3-phenylcinnamoylguanidine, 
 3-t-butylcinnamoylguanidine, 
 4-(trifluoromethyl)cinnamoylguanidine, 
 4-ethoxycinnamoylguanidine, 
 4-fluorocinnamoylguanidine, 
 4-isopropylcinnamoylguanidine, 
 4-methylcinnamoylguanidine, 
 4-phenylbenzoylguanidine, 
 4-phenylcinnamoylguanidine, 
 4-t-butylcinnamoylguanidine, 
 5-(2′-bromophenyl)penta-2,4-dienoylguanidine, 
 5-(3′-bromophenyl)penta-2,4-dienoylguanidine, 
 5-(4-fluorophenyl)amiloride, 
 5-(N,N-Dimethyl)amiloride hydrochloride, 
 5-(N,N-hexamethylene)amiloride, 
 5-(N-Ethyl-N-isopropyl)amiloride, 
 5-(N-Methyl-N-isobutyl)amiloride, 
 5-bromo-2-fluorocinnamoylguanidine, 
 5-bromo-2-methoxycinnamoylguanidine, 
 5-tert-butylamino-amiloride, 
 6-bromo-2-naphthoylguanidine, 
 6-Iodoamiloride, 
 6-methoxy-2-naphthoylguanidine, 
 Benzamil hydrochloride, 
 Benzyoylguanidine, 
 cinnamoylguanidine hydrochloride, 
 Cinnamoylguanidine, 
 N-(2-naphthoyl)-N′-phenylguanidine, 
 N-(3-phenylpropanoyl)-N′-phenylguanidine, 
 N-(3-phenylpropanoyl)-N′-phenylguanidine, 
 N-(6-Hydroxy-2-naphthoyl)-N′-phenylguanidine, 
 N-(cinnamoyl)-N′phenylguanidine, 
 N,N′-Bis(3-phenylpropanoyl)guanidine, 
 N,N′-bis(3phenylpropanoyl)-N″-phenylguanidine, 
 N,N′-Bis(amidino)naphthalene-2,6-dicarboxamide, 
 N,N′-bis-(cinnamoyl)-N″-phenylguanidine, 
 N-amidino-3,5-diamino-6-phynyl-2-Pyrazinecarboxamide, 
 N-amidino-3-amino-5-hexamethyleneimino-6-phenyl-2-pyrazinecarboxamide, 
 N-amidino-3-amino-5-phenyl-6-chloro-2-pyrazinecarboxamide, 
 N-Benzoyl-N′-cinnamoylguanidine, 
 N-Cinnamoyl-N′,N′-dimethylguanidine, 
 Phenamil methanesulfonate salt, 
 trans-3-(1-naphthyl)acryloylguanidine and 
 trans-3 -Furanacryoylguanidine, 
 
       or a pharmaceutically acceptable salt thereof. 
     
     
         171 . The method according to  claim 169 , wherein said virus is a Lentivirus. 
     
     
         172 . The method according to  claim 171 , wherein said Lentivirus is Human Immunodeficiency Virus (HIV). 
     
     
         173 . The method according to  claim 172 , wherein said HIV is HIV-1. 
     
     
         174 . The method according to  claim 169  wherein said virus is a Coronavirus. 
     
     
         175 . The method according to  claim 174 , wherein said Coronavirus is the Severe Acute Respiratory Syndrome virus (SARS), human Coronavirus 229E, human Coronavirus OC43, porcine respiratory Coronavirus (PRCV) or bovine Coronvirus (BCV). 
     
     
         176 . The method according to  claim 174 , wherein said Coronavirus is any one of the coronavirus isolates listed in Table 1. 
     
     
         177 . The method according to  claim 169 , wherein said virus is the Hepatitis C virus. 
     
     
         178 . The method according to  claim 169 , wherein said virus is Equine Arteritis virus. 
     
     
         179 . A method for preventing the infection of a cell exposed to a virus or for reducing, retarding or otherwise inhibiting growth and/or replication of a virus in a cell infected with said virus comprising contacting the cell with a compound of Formula I 
       
         
           
           
               
               
           
         
       
       or a pharmaceutically acceptable salt thereof, 
       wherein, 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         R 2 , R 3  and R 4  are independently hydrogen, 
       
       
         
           
           
               
               
           
         
       
       and wherein
 X=hydrogen, hydroxy, nitro, halo, C 1-6 alkyl, C 1-6 alkyloxy, C 3-6 cycloalkyl, halo-substituted C 1-6 alkyl, halo-substituted C 1-6 alkyloxy, phenyl, C 1-6 alkeneyl, C 3-6 dycloalkeneyl, C 1-6 alkeneoxy, or benzo; 
 R a , R b , R c , R d , R e , R f , R h , R k , R l , R m , R n , R o , R p  independently = hydrogen, amino, halo, C 1-5 alkyl, C 1-5 alkyloxy, hydroxy, aryl, substituted aryl, substituted amino, mono or dialkyl-substituted amino, cycloalkyl-substituted amino, aryl-substituted amino, 
 
       
         
           
           
               
               
           
         
       
       or PrS;
 R g , R i  independently=hydrogen, hydroxy, halo, or C 1-5  alkyl; 
 R j =hydrogen, amino, halo, C 1-5 alkyl, C 1-5 alkyloxy, hydroxy, aryl, substituted aryl, substituted amino, alkyl-substituted amino, cycloalkyl-substituted amino, aryl-substituted amino, PrS, 
 
       
         
           
           
               
               
           
         
       
       and wherein
 when R 1  is 
 
       
         
           
           
               
               
           
         
       
       R a  and R c  are amino, and R b  is halo, R 2 , R 3  or R 4  cannot be hydrogen, benzyl or substituted benzyl or BODIPY-Fl;
 when R 1  is C 6 H 5 CH═CH, R 2  is hydrogen and R 3  is phenyl, R 4  cannot be phenyl; 
 when R 1  is phenyl, R 2  is hydrogen, and R 3  is benzoyl, R 4  cannot be benzoyl; 
 when R 1  is phenyl, R 2  is substituted benzyl, R 3  is hydrogen and R 4  is hydrogen, R n , R o  and R p  cannot all be hydrogen; 
 when R 1  is phenyl, R 3  is hydrogen and R 4  is hydrogen, R 2  cannot be benzyl or phenyl; 
 when R 1  is phenyl, R 2  is hydrogen, R 3  cannot be phenyl together with R 4  as benzoyl; and 
 when R 1  is phenyl, R 2  is hydrogen, R 3  and R 4  cannot both be benzyl. 
 
     
     
         180 . The method according to  claim 179  wherein the compound is selected from:
 (2-Bromocinnamoyl)guanidine, 
 (2-Chlorocinnamoyl)guanidine, 
 (2-Furanacryloyl)guanidine, 
 (2-Methoxycinnamoyl)guanidine, 
 (2-Nitrocinnamoyl)guanidine, 
 (3-Bromocinnamoyl)guanidine, 
 (3-Chlorocinnamoyl)guanidine, 
 (3-Methoxycinnamoyl)guanidine, 
 (3-Nitrocinnamoyl)guanidine, 
 (3-phenylpropanoyl)guanidine, 
 (4-Bromocinnamoyl)guanidine, 
 (4-Chlorocinnamoyl)guanidine, 
 (4-Hydroxycinnamoyl)guanidine, 
 (4-Methoxycinnamoyl)guanidine, 
 (4-Phenoxybenzoyl)guanidine, 
 (5-Phenyl-penta-2,4-dienoyl)guanidine, 
 (a-Methylcinnamoyl)guanidine, 
 (Phenylacetyl)guanidine, 
 (Quinoline-2-carbonyl)guanidine, 
 (trans-2-Phenylcyclopropanecarbonyl)guanidine, 
 [(4-Chlorophenoxy-acetyl]guanidine, 
 [(E)-3-(4-Dimethylaminophenyl)-2-methylacryloyl]guanidine, 
 [3-(3-Pyridyl)acryloyl]guanidine, 
 1-bromo-2-naphthoylguanidine, 
 1-naphthoylguanidine, 
 2-(1-naphthyl)acetoylguanidine, 
 2-(2-naphthyl)acetoylguanidine, 
 2-(cyclohex-1-en-lyl)cinnamoylguanidine, 
 2-(trifluoromethyl)cinnamoylguanidine, 
 2,3,5,6,-tetramethylcinnamoylguanidine, 
 2,3-difluorocinnamoy lguanidine, 
 2,3-dimethylcinnamoylguanidine, 
 2,4,6-trimethylcinnamoylguanidine, 
 2,4-dichlorocinnamolyguanidine, 
 2,5-dimethylcinnamoylguanidine, 
 2,6-dichlorocinnamoylguanidine, 
 2′4 DichloroBenazamil HCl, 
 2-chloro-6-fluorocinnamoylguanidine, 
 2-cyclohexylcinnamoylguanidine, 
 2-ethoxycinnamoylguanidine, 
 2-ethylcinnamoylguanidine, 
 2-fluorocinnamoylguanidine, 
 2-methylcinnamoylguanidine, 
 2-naphthoylguanidine, 
 2-phenylcinnamoylguanidine, 
 2-t-butylcinnamoylguanidine, 
 3-(2-naphthyl)acryloylguanidine, 
 3-(cyclohex-1-en-1-yl)cinnamoylguanidine, 
 3-(trans-hept-1-en-1-yl)cinnamoylguanidine, 
 3-(trifluoromethoxy)cinnamoylguanidine, 
 3-(trifluoromethyl)cinnamoylguanidine, 
 3,4-(methylenedioxy)cinnamoylguanidine, 
 3,4,5-trimethoxycinnamoylguanidine, 
 3,4-dichlorocinnamoylguanidine, 
 3,4-difluorocinnamoylguanidine, 
 3-ethoxycinnamoylguanidine, 
 3-fluorocinnamoylguanidine, 
 3-isopropylcinnamoylguanidine hydrochloride, 
 3-methoxy-HMA, 
 3-methoxy-amiloride, 
 3-methylcinnamoylguanidine, 
 3-phenylcinnamoylguanidine, 
 3-t-butylcinnamoylguanidine, 
 4-(trifluoromethyl)cinnamoylguanidine, 
 4-ethoxycinnamoylguanidine, 
 4-fluorocinnamoylguanidine, 
 4-isopropylcinnamoylguanidine, 
 4-methylcinnamoylguanidine, 
 4-phenylbenzoylguanidine, 
 4-phenylcinnamoylguanidine, 
 4-t-butylcinnamoylguanidine, 
 5-(2′-bromophenyl)penta-2,4-dienoylguanidine, 
 5-(3′-bromophenyl)penta-2,4-dienoylguanidine, 
 5-(4-fluorophenyl)amiloride, 
 5-(N,N-Dimethyl)amiloride hydrochloride, 
 5-(N,N-hexamethylene)amiloride, 
 5-(N-Ethyl-N-isopropyl)amiloride, 
 5-(N-Methyl-N-isobutyl)amiloride, 
 5-bromo-2-fluorocinnamoylguanidine, 
 5-bromo-2-methoxycinnamoylguanidine, 
 5-tert-butylamino-amiloride, 
 6-bromo-2-naphthoylguanidine, 
 6-Iodoamiloride, 
 6-methoxy-2-naphthoylguanidine, 
 Benzamil hydrochloride, 
 Benzyoylguanidine, 
 cinnamoylguanidine hydrochloride, 
 Cinnamoylguanidine, 
 N-(2-naphthoyl)-N′-phenylguanidine, 
 N-(3-phenylpropanoyl)-N′-phenylguanidine, 
 N-(3-phenylpropanoyl)-N′-phenylguanidine, 
 N-(6-Hydroxy-2-naphthoyl)-N′-phenylguanidine, 
 N-(cinnamoyl)-N′phenylguanidine, 
 N,N′-Bis(3-phenylpropanoyl)guanidine, 
 N,N′-bis(3phenylpropanoyl)-N″-phenylguanidine, 
 N,N′-Bis(amidino)naphthalene-2,6-dicarboxamide, 
 N,N′-bis-(cinnamoyl)-N″-phenylguanidine, 
 N-amidino-3,5-diamino-6-phynyl-2-Pyrazinecarboxamide, 
 N-amidino-3-amino-5-hexamethyleneimino-6-phenyl-2-pyrazinecarboxamide, 
 N-amidino-3-amino-5-phenyl-6-chloro-2-pyrazinecarboxamide, 
 N-Benzoyl-N′-cinnamoylguanidine, 
 N-Cinnamoyl-N′,N′-dimethylguanidine, 
 Phenamil methanesulfonate salt, 
 trans-3-(1-naphthyl)acryloylguanidine and 
 trans-3 -Furanacryoylguanidine, 
 
       or a pharmaceutically acceptable salt thereof. 
     
     
         181 . The method according to  claim 179 , wherein said virus is a Lentivirus, Human Immunodeficiency Virus (HIV), a Coronavirus, the Hepatitis C virus or Equine Arteritis virus. 
     
     
         182 . A compound of Formula I 
       
         
           
           
               
               
           
         
       
       or a pharmaceutically acceptable salt thereof,
 wherein, 
 R 1 = 
 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         R 2 , R 3  and R 4  are independently hydrogen, 
       
       
         
           
           
               
               
           
         
       
       and wherein
 X=hydrogen, C 2-6 alkyl, C 3-6 cycloalkyl, phenyl, C 1-6 alkeneyl, C 3-6 cycloalkeneyl, C 1-6 alkeneoxy, or benzo; 
 R d , R e , R f , R h , R l , R m , R n , R o , R p  independently = hydrogen, amino, C2_salkyl, aryl, substituted aryl, aryl-substituted amino, 
 
       
         
           
           
               
               
           
         
       
       or PrS;
 R g , R i  independently=hydrogen, hydroxy, or C 1-5  alkyl; 
 R k =amino, C 1-5 alkyl, aryl, substituted aryl, substituted amino, mono or dialkyl-substituted amino, cycloalkyl-substituted amino, aryl-substituted amino, 
 
       
         
           
           
               
               
           
         
       
       or PrS;
 R j =hydrogen, amino, C 1-5 alkyl, hydroxy, aryl, substituted aryl, substituted amino, alkyl-substituted amino, cycloalkyl-substituted amino, aryl-substituted amino, PrS, 
 
       
         
           
           
               
               
           
         
         and wherein 
         when R 1  is C 6 H 5 CH═CH, R 2  is hydrogen and R 3  is phenyl, R 4  cannot be phenyl; 
         when R 1  is phenyl, R 2  is hydrogen, and R 3  is benzoyl, R 4  cannot be benzoyl; 
         when R 1  is phenyl, R 2  is substituted benzyl, R 3  is hydrogen and R 4  is hydrogen, R n , R o  and R p  cannot all be hydrogen; 
         when R 1  is phenyl, R 3  is hydrogen and R 4  is hydrogen, R 2  cannot be benzyl or phenyl; 
         when R 1  is phenyl, R 2  is hydrogen, R 3  cannot be phenyl together with R 4  as benzoyl; and 
         when R 1  is phenyl, R 2  is hydrogen, R 3  and R 4  cannot both be benzyl. 
       
     
     
         183 . A compound of Formula I 
       
         
           
           
               
               
           
         
       
       or a pharmaceutically acceptable salt thereof,
 wherein, 
 
       
         
           
           
               
               
           
         
         R 2 , R 3  and R 4  are independently hydrogen, 
       
       
         
           
           
               
               
           
         
       
       and wherein
 X=hydrogen, C 2-6 alkyl, C 3-6 cycloalkyl, phenyl, C 1-6 alkeneyl, C 3-6 cycloalkeneyl, C 1-6 alkeneoxy, or benzo; 
 R d , R e , R f , R h , R l , R m , R n , R o , R p  independently=hydrogen, amino, C 2-5 alkyl, aryl, substituted aryl, aryl-substituted amino, 
 
       
         
           
           
               
               
           
         
       
       or PrS;
 R g , R i  independently=hydrogen, hydroxy, or C 1-5  alkyl; 
 R k =hydrogen, amino, C 1-5 alkyl, aryl, substituted aryl, substituted amino, mono or dialkyl-substituted amino, cycloalkyl-substituted amino, aryl-substituted amino, 
 
       
         
           
           
               
               
           
         
       
       or PrS;
 R j =amino, C 1-5 alkyl, hydroxy, aryl, substituted aryl, substituted amino, alkyl-substituted amino, cycloalkyl-substituted amino, aryl-substituted amino, PrS, 
 
       
         
           
           
               
               
           
         
       
       and wherein
 when R 1  is C 6 H 5 CH═CH, R 2  is hydrogen and R 3  is phenyl, R 4  cannot be phenyl; 
 when R 1  is phenyl, R 2  is hydrogen, and R 3  is benzoyl, R 4  cannot be benzoyl; 
 when R 1  is phenyl, R 2  is substituted benzyl, R 3  is hydrogen and R 4  is hydrogen, R n , R o  and R p  cannot all be hydrogen; 
 when R 1  is phenyl, R 3  is hydrogen and R 4  is hydrogen, R 2  cannot be benzyl or phenyl; 
 when R 1  is phenyl, R 2  is hydrogen, R 3  cannot be phenyl together with R 4  as benzoyl; and 
 when R 1  is phenyl, R 2  is hydrogen, R 3  and R 4  cannot both be benzyl. 
 
     
     
         184 . A compound according to  claim 183  selected from the group consisting of:
 cinnamoylguanidine, 
 4-phenylbenzoylguanidine, 
 N-(cinnamoyl)-N′phenylguanidine, 
 N,N′-bis-(cinnamoyl)-N″-phenylguanidine, 
 N-(6-Hydroxy-2-naphthoyl)-N′-phenylguanidine, 
 N,N′-Bis(amidino)naphthalene-2,6-dicarboxamide, 
 N″-Cinnamoyl-N,N′-diphenylguanidine, 
 (Phenylacetyl)guanidine, 
 benzyoylguanidine, 
 N-benzoyl-N′-cinnamoylguanidine, 
 [(E)-3-(4-Dimethylaminophenyl)-2-methylacryloyl]guanidine, 
 (5-Phenyl-penta-2,4-dienoyl)guanidine, 
 [3-(3-Pyridyl)acryloyl] guanidine, 
 (4-Hydroxycinnamoyl)guanidine, 
 (Quinoline-2-carbonyl)guanidine, 
 
       or a pharmaceutically acceptable salt thereof. 
     
     
         185 . A pharmaceutical composition comprising a compound according to  claim 183  and optionally one or more pharmaceutical acceptable carriers or derivatives. 
     
     
         186 . The pharmaceutical composition according to  claim 185 , further comprising one or more other antiviral agents.

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