Pyrrolidine sulfonamides

Abstract

The present invention relates to pyrrolidine sulfonamides, pharmaceutical compositions containing them and their use as urotensin II antagonists.

What is claimed is:  
     
         1 . A compound of Formula (I):  
       
         
           
           
               
               
           
         
       
       wherein: 
 R 1  is C 1-6  alkyl, benzyl, or (CH 2 ) n —C(O)NH 2 ; wherein the benzyl may be unsubstituted or substituted by one or two C 1-6  alkyl, halogen, C 1-6  alkoxy, or methylenedioxy groups;  
 R 2  is benzimidazolyl, quinolinyl, benzofuranyl, napthyl, indolyl, benzothiophenyl, phenyl, furanyl, thienyl, or pyridyl substituted or unsubstituted by one, two or three halogen, C 1-3  alkyl, C 1-3  alkoxy, or methylenedioxy groups;  
 X 1  and X 2  are independently hydrogen, halogen, C 1-3  alkyl, C 1-3  alkoxy, nitro, CF 3 , or CN;  
 n is 1, 2, or 3;  
 m is 1, 2 or 3;  
 or a pharmaceutically acceptable salt thereof.  
 
     
     
         2 . A compound of  claim 1  wherein m is 1 or 2; R 1  is isobutyl; R 2  is benzothiopheneyl; X 1  is hydrogen, 3-Bromo, or 3-Chloro; and X 2  is hydrogen or 5-Chloro.  
     
     
         3 . A compound of  claim 1  chosen from the group consisting of: 
 Benzo[b]thiophene-2-carboxylic acid [(S)-1-(2-{4-[3-chloro-4-(piperidin-4-yloxy)-benzenesulfonyl]-piperazin-1-yl}-ethylcarbamoyl)-3-methyl-butyl]-;  
 Benzo[b]thiophene-2-carboxylic acid [(S)-1-(2-{4-[3-bromo-4-(piperidin-4-yloxy)-benzenesulfonyl]-piperazin-1-yl}-ethylcarbamoyl)-3-methyl-butyl]-amide;  
 Benzo[b]thiophene-2-carboxylic acid [(S)-1-(2-{4-[3-chloro-4-((S)-pyrrolidin-3-yloxy)-benzenesulfonyl]-piperazin-1-yl}-ethylcarbamoyl)-3-methyl-butyl]-amide;  
 Benzo[b]thiophene-2-carboxylic acid [(S)-1-(2-{4-[3-bromo-4-((S)-pyrrolidin-3-yloxy)-benzenesulfonyl]-piperazin-1-yl)-ethylcarbamoyl)-3-methyl-butyl]-amide;  
 Benzo[b]thiophene-2-carboxylic acid [(S)-3-methyl-1-(2-{4-[4-(piperidin-4-yloxy)-benzenesulfonyl]-piperazin-1-yl}-ethylcarbamoyl)-butyl]-amide; and  
 Benzo[b]thiophene-2-carboxylic acid [(S)-1-(2-{4-[3,5-dichloro-4-(piperidin-4-yloxy)-benzenesulfonyl]-piperazin-1-yl}-ethylcarbamoyl)-3-methyl-butyl]-amide.  
 
     
     
         4 . A pharmaceutical composition comprising a compound of formula (I) of  claim 1  and a pharmaceutically acceptable carrier or excipient.  
     
     
         5 . A method of treating conditions associated with Urotensin-II imbalance by antagonizing the Urotensin-II receptor which comprises administering to a patient in need thereof, a compound of Formula I of  claim 1 .  
     
     
         6 . A method according to  claim 5  wherein the disease is congestive heart failure, stroke, ischemic heart disease, angina, myocardial ischemia, cardiac arrythmias, essential hypertension, pulmonary hypertension, COPD, restenosis, asthma, neurogenic inflammation metabolic vasculopathies, addiction, schizophrenia, cognitive disorders/Alzheimers disease, impulsivity, anxiety, stress, depression, neuromuscular function, or diabetes.