US2011144081A1PendingUtilityA1

Pyrrolidine derivatives

51
Assignee: KNUST HENNERPriority: Dec 15, 2009Filed: Dec 7, 2010Published: Jun 16, 2011
Est. expiryDec 15, 2029(~3.4 yrs left)· nominal 20-yr term from priority
C07D 417/14A61K 31/40C07D 207/14A61K 31/454C07D 405/06A61K 31/4025A61K 31/506A61K 31/4545C07D 413/06A61P 25/24C07D 407/04A61K 31/5377A61K 31/497A61K 31/501C07D 403/06A61P 25/22C07D 401/06A61P 25/16A61P 25/00A61P 25/04A61P 25/18A61K 31/4439
51
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Claims

Abstract

The present invention relates to compounds of formula wherein R 1 , R 2 , R 3 , R 4 , Z, and n are as defined herein or to a pharmaceutically active salt thereof. Compounds of the invention are high potential NK-3 receptor antagonists for the treatment of depression, pain, psychosis, Parkinson's disease, schizophrenia, anxiety and attention deficit hyperactivity disorder (ADHD).

Claims

exact text as granted — not AI-modified
1 . A compound of formula I 
       
         
           
           
               
               
           
         
       
       wherein
 R 1  is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen; 
 n is 1, 2 or 3, wherein when n is 2 or 3, each R 1  is the same or different; 
 R 2  is hydrogen or methyl; 
 R 3  is (CH 2 ) r —C(O)NH 2  or (CH 2 ) r —CN, wherein r is 1 or 2, or 
 is a non aromatic heterocyclic group 
 
       
         
           
           
               
               
           
         
       
       wherein
 X is N or CH; 
 Y is —C(R)(R 7 )—; —N(R 7′ )—, —S(O) 2  or O; 
 R 6  is hydrogen, di-lower alkyl or ═O; 
 o and m are each independently 0, 1 or 2; 
 p is 0, 1 or 2; 
 R is hydrogen, halogen, or lower alkyl; 
 R 7  is hydrogen, halogen, hydroxy, lower alkyl substituted by hydroxy, cyano, or lower alkoxy; 
 R 7′  is hydrogen, —C(O)-lower alkyl, —C(O)O-lower alkyl, —C(O)CH 2 O-lower alkyl, —C(O)CH 2 CN, or is 
 —C(O)-cycloalkyl, cycloalkyl or —CH 2 -cycloalkyl, 
 wherein the cycloalkyl groups are optionally substituted by halogen, lower alkoxy, lower alkyl substituted by halogen, cyano, —CH 2 O-lower alkyl, or lower alkyl, or is —C(O)-heterocycloalkyl, heterocycloalkyl, —C(O)-heteroaryl or heteroaryl, 
 which heterocycloalkyl or heteroaryl groups are optionally substituted by halogen, lower alkyl, ═O, lower alkoxy, lower alkyl substituted by halogen, C(O)NH-lower alkyl, C(O)NH 2 , C(O)-lower alkyl, S(O) 2 — lower alkyl or cyano; 
 Z is —O—, —NH— or —N(lower alkyl)-; 
 R 4  is lower alkyl, 
 lower alkyl substituted by halogen, 
 lower alkyl substituted by hydroxy, 
 lower alkyl substituted by cycloalkyl, 
 (CH 2 ) s —O-lower alkyl, wherein s is 2 or 3, 
 CH(CH 3 )CH 2 —O-lower alkyl, 
 (CH 2 ) q CN, bicyclo[2.2.1]heptanyl, 
 (CH 2 ) q -cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is 
 (CH 2 ) q -heterocycloalkyl, (CH 2 ) q -aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or (CH 2 ) q -heteroaryl, 
 which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O) 2 -lower alkyl, cyano or by lower alkoxy; 
 q is 0, 1 or 2; 
 or a pharmaceutically active salt thereof. 
 
     
     
         2 . The compound of  claim 1  having formula Ia, 
       
         
           
           
               
               
           
         
       
       wherein
 R 1  is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen; 
 n is 1, 2 or 3, wherein when n is 2 or 3, each R 1  is the same or different; 
 R 2  is hydrogen or methyl; 
 R 6  is hydrogen, di-lower alkyl or ═O; 
 o and m are each independently 0, 1 or 2; 
 R 7′  is hydrogen, —C(O)-lower alkyl, —C(O)O-lower alkyl, —C(O)CH 2 O-lower alkyl, —C(O)CH 2 CN, or is 
 —C(O)-cycloalkyl, cycloalkyl or —CH 2 -cycloalkyl, 
 wherein the cycloalkyl groups are optionally substituted by halogen, lower alkoxy, lower alkyl substituted by halogen, cyano, —CH 2 O-lower alkyl, or lower alkyl, or is —C(O)-heterocycloalkyl, heterocycloalkyl, —C(O)-heteroaryl, or heteroaryl, 
 which heterocycloalkyl or heteroaryl groups are optionally substituted by halogen, lower alkyl, ═O, lower alkoxy, lower alkyl substituted by halogen, C(O)NH-lower alkyl, C(O)NH 2 , C(O)-lower alkyl, S(O) 2 — lower alkyl or cyano; 
 Z is —O—, —NH— or —N(lower alkyl)-; 
 R 4  is lower alkyl, 
 lower alkyl substituted by halogen, 
 lower alkyl substituted by hydroxy, 
 lower alkyl substituted by cycloalkyl, 
 (CH 2 ) s —O-lower alkyl, wherein s is 2 or 3, 
 CH(CH 3 )CH 2 —O-lower alkyl, 
 (CH 2 ) q CN, bicyclo[2.2.1]heptanyl, 
 (CH 2 ) q -cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is 
 (CH 2 ) q -heterocycloalkyl, (CH 2 ) q -aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or (CH 2 ) q -heteroaryl, 
 which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O) 2 -lower alkyl, cyano or by lower alkoxy; 
 q is 0, 1 or 2; 
 or a pharmaceutically active salt thereof. 
 
     
     
         3 . The compound of  claim 2 , selected from the group consisting of
 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopentyl ester;   rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester;   rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid p-tolyl ester;   rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester; and   rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-chloro-phenyl ester.   
     
     
         4 . The compound of  claim 2 , selected from the group consisting of
 rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid butyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chloro-phenyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid phenyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-methoxyphenyl ester;   {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester;   {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chlorophenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chlorophenyl ester; and   [(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester.   
     
     
         5 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2-dimethyl-propyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid prop-2-ynyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopropylmethyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester;   rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid butyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester; and   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3-dimethyl-butyl ester.   
     
     
         6 . The compound of  claim 2 , selected from the group consisting of
 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tetrahydro-pyran-4-ylmethyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopentylmethyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-methyl-oxetan-3-ylmethyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-trifluoromethyl-pyridin-3-yl ester;   {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester;   {(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-{(3R,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester; and   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester.   
     
     
         7 . The compound of  claim 2 , selected from the group consisting of
 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-carbamic acid 4-fluoro-phenyl ester;   rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester;   rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-methyl-cyclohexyl ester;   rac-1-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-3-(2-cyclopropyl-ethyl)-1-methyl-urea;   {(3R,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester;   rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester;   rac-[(3R,4S)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester; and   rac-4-{(3S,4R)-3-(3,4-Dichloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-1-carbonyl}-piperidine-1-carboxylic acid tert-butyl ester.   
     
     
         8 . The compound of  claim 2 , selected from the group consisting of
 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester;   {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2S,4S)-bicyclo[2.2.1]hept-2-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2S,4S)-bicyclo[2.2.1]hept-2-yl ester;   {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2R,4S)-bicyclo[2.2.1]hept-2-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2R,4S)-bicyclo[2.2.1]hept-2-yl ester;   rac-{(3R,4S)-4-(3-Chloro-4-methyl-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-{(3R,4S)-4-(4-Chloro-3-methyl-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(1-propionyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester; and   rac-[(3R,4S)-1-(1-Cyclopropanecarbonyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         9 . The compound of  claim 2 , selected from the group consisting of
 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(2-methoxy-acetyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(1-[1,3,4]thiadiazol-2-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-[(3R,4S)-1-[1-(6-Chloro-pyridazin-3-yl)-piperidine-4-carbonyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-[(3R,4S)-1-(5′-Cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,4,4,4-pentafluoro-butyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (S)-1-(tetrahydro-furan-2-yl)methyl ester; and   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (R)-1-(tetrahydro-furan-2-yl)methyl ester.   
     
     
         10 . The compound of  claim 2 , selected from the group consisting of
 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (S)-1-(tetrahydro-furan-3-yl)methyl ester; rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (R)-1-(tetrahydro-furan-3-yl)methyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,5,5,5-pentafluoro-pentyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-methyl-cyclopropylmethyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-benzyl ester; and   rac-1-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-3-(4-fluoro-phenyl)-1-methyl-urea.   
     
     
         11 . The compound of  claim 2 , selected from the group consisting of
 rac-1-(2-Cyclopropyl-ethyl)-3-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-1,3-dimethyl-urea;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-hydroxy-3-methyl-butyl ester;   rac {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4-difluoro-cyclohexylmethyl ester;   {(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4-difluoro-cyclohexyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester;   {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester; and   {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester.   
     
     
         12 . The compound of  claim 2 , selected from the group consisting of
 {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1,1-dioxo-hexahydro-1λ 6 -thiopyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-chloro-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3-difluoro-cyclopentylmethyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-bromo-4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1,1-dioxo-tetrahydro-1λ 6 -thiophen-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-methyl-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester; and   rac-[(3S,4R)-1-(5′-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         13 . The compound of  claim 2 , selected from the group consisting of
 rac-[(3S,4R)-1-(5′-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester;   [(3R,4S)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester;   rac-[(3S,4R)-1-(5′-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester;   [(3R,4S)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester;   [(3R,4S)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester;   {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester; and   {(3R,4S)-4-(4-Fluoro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         14 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-1-(5′-Cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3R,4S)-1-(5′-Cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   4-{(3R,4S)-3-(4-Chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-1-carbonyl}-piperidine-1-carboxylic acid tert-butyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-methyl-[1,3,4]oxadiazol-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid ethyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid isopropyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid propyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid isobutyl ester; and   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-cyano-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         15 . The compound of  claim 2 , selected from the group consisting of
 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid isobutyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid propyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclohexyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-propyl ester;   [(3R,4S)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-propyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclopropyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   3-{(3R,4S)-3-(4-Chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-1-carbonyl}-pyrrolidine-1-carboxylic acid tert-butyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclohexyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-cyclopropyl-ethyl ester; and   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-cyclopropyl-ethyl ester.   
     
     
         16 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid oxetan-3-yl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-pyran-4-yl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid sec-butyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-ethyl ester;   [(3S,4R)-1-(5′-Cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(6-methyl-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tetrahydro-pyran-4-yl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid sec-butyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,2-trifluoro ethyl ester; and   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,2-trifluoro-1-methyl-ethyl ester.   
     
     
         17 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-1-methyl-ethyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(4-methyl-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-fluoro-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-propionyl-pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclopropanecarbonyl-pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(2-methoxy-acetyl)-pyrrolidine-3-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclobutyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclobutyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,3,3-tetrafluorocyclobutyl ester; and   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,3,3-tetrafluorocyclobutyl ester.   
     
     
         18 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-1-methyl-propyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-1-methyl-propyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-pyrrolidine-3-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-methanesulfonyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-(5′-Acetyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-pyrimidin-2-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-chloro-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(4′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester; and   [(3S,4R)-4-(4-Chloro-phenyl)-1-(3′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         19 . The compound of  claim 2 , selected from the group consisting of
 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-cyano-pyrazin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(3′-chloro-5′-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(6′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-methoxy-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-pyrimidin-4-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-cyano-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-cyano-pyrazin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-methyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-fluoro-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester; and   [(3S,4R)-1-(5′-Carbamoyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         20 . The compound of  claim 2 , selected from the group consisting of
 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-methoxy-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(6′-cyano-3,4,5,6-tetrahydro-2H-[1,3′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-chloro-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid p-tolyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-chloro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopentyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2-dimethyl-propyl ester; and   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-methoxy-ethyl ester.   
     
     
         21 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,4-difluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,4-difluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(6′-cyano-3,4,5,6-tetrahydro-2H-[1,3′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,5-difluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,3-difluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-chloro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-fluoro-propyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopropylmethyl ester; and   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-methoxy-propyl ester.   
     
     
         22 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-methyl-oxetan-3-ylmethyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-cyclopropyl-ethyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-cyclohexyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-cyclohexyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-methoxy-1-methyl-ethyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-ethyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methanesulfonyl-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-cyano-phenyl ester; and   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-(4-fluoro-phenyl)-ethyl ester.   
     
     
         23 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-1-fluoromethyl-ethyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyano-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid o-tolyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid m-tolyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-pyran-4-ylmethyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-furan-2-ylmethyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-furan-3-ylmethyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,1-dimethyl-propyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-1,1-dimethyl-ethyl ester; and   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-(4-fluoro-phenyl)-propyl ester.   
     
     
         24 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyano-2-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-cyclohexyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopropyl-(4-fluoro-phenyl)-methyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-1-trifluoromethyl-cyclohexyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,4-dimethyl-cyclohexyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,4-dimethyl-cyclohexyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-methyl-cyclopentyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 5-chloro-pyridin-2-yl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyano-3-fluoro-phenyl ester; and   [(3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         25 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(3-methyl-oxetane-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(3-fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(3,3-difluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(3-methoxy-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-trifluoromethyl-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(2-cyano-acetyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-trifluoromethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester; and   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(2,2-difluoro-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         26 . The compound of  claim 2 , selected from the group consisting of
 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methoxymethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(2,2-dimethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-trifluoromethyl-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-fluoro-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-isopropyl-6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-(1-Cyclobutanecarbonyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester; and   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(3-methyl-oxetane-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         27 . The compound of  claim 2 , selected from the group consisting of
 {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(3-fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(3,3-difluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(3-methoxy-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-trifluoromethyl-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-[1-(2-Cyano-acetyl)-piperidine-4-carbonyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-[1-(1-Cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-trifluoromethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(2,2-difluoro-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester; and   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         28 . The compound of  claim 2 , selected from the group consisting of
 {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methoxymethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(2,2-dimethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(5-trifluoromethyl-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(5-fluoro-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-isopropyl-6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-[1-(2-Cyano-acetyl)-piperidine-4-carbonyl]-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester; and   {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-(3-methyl-oxetane-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         29 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-1-[1-(3-Fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-[1-(1-Cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl]-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-(1-trifluoromethyl-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-(5-trifluoromethyl-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-(6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-((S)-4-oxo-azetidine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,6-dimethyl-pyridin-4-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid pyridin-3-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-methyl-pyridin-3-yl ester; and   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid pyridin-4-yl ester.   
     
     
         30 . The compound of  claim 2 , selected from the group consisting of
 {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,6-dimethyl-pyridin-3-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 5-fluoro-pyridin-3-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-2-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-chloro-5-fluoro-pyridin-3-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-chloro-pyridin-3-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-trifluoromethyl-pyridin-3-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyano-pyridin-3-yl ester;   {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-fluoro-6-methyl-pyridin-3-yl ester;   [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(5′-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-(5′-Acetyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-(5′-Chloro-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester; and   [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(5′-fluoro-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         31 . The compound of  claim 2 , selected from the group consisting of
 [(3S,4R)-1-(5′-Carbamoyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5′-fluoro-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5′-chloro-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5′-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-(5′-Acetyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(4-chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5′-fluoro-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5′-chloro-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5′-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-1-(5′-Acetyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-4-(3-chloro-4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-((S)-4-oxo-azetidine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(5′-hydroxy-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester; and   Acetic acid 4-{(3R,4S)-3-(4-chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-1-carbonyl}-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-5′-yl ester.   
     
     
         32 . The compound of  claim 1 , having formula Ib 
       
         
           
           
               
               
           
         
       
       wherein
 R 1  is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen; 
 n is 1, 2 or 3, wherein when n is 2 or 3, each R 1  is the same or different; 
 R 2  is hydrogen or methyl; 
 R 6  is hydrogen, di-lower alkyl or ═O; 
 o and m are each independently 0, 1 or 2; 
 R is hydrogen, halogen, or lower alkyl; 
 R 7  is hydrogen, halogen, hydroxy, lower alkyl substituted by hydroxy, cyano, or lower alkoxy; 
 R 4  is lower alkyl, 
 lower alkyl substituted by halogen, 
 lower alkyl substituted by hydroxy, 
 lower alkyl substituted by cycloalkyl, 
 (CH 2 ) s —O-lower alkyl, wherein s is 2 or 3, 
 CH(CH 3 )CH 2 —O-lower alkyl, 
 (CH 2 ) q CN, bicyclo[2.2.1]heptanyl, 
 (CH 2 ) q -cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is 
 (CH 2 ) q -heterocycloalkyl, (CH 2 ) q -aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or (CH 2 ) q -heteroaryl, 
 which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O) 2 -lower alkyl, cyano or by lower alkoxy; 
 q is 0, 1 or 2; 
 or a pharmaceutically active salt thereof. 
 
     
     
         33 . The compound of  claim 33 , selected from the group consisting of
 [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-methoxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-4-methyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-4-methyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(4-cyano-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(4-hydroxymethyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(4,4-difluoro-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester; and   [(3S,4R)-4-(4-Chloro-phenyl)-1-(3-methoxy-cyclobutanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         34 . The compound of  claim 1 , having formula Ic 
       
         
           
           
               
               
           
         
       
       wherein
 R 1  is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen; 
 n is 1, 2 or 3, wherein when n is 2 or 3, each R 1  is the same or different; 
 R 2  is hydrogen or methyl; 
 P is 0, 1 or 2; 
 R 4  is lower alkyl, 
 lower alkyl substituted by halogen, 
 lower alkyl substituted by hydroxy, 
 lower alkyl substituted by cycloalkyl, 
 (CH 2 ) s —O-lower alkyl, where s is 2 or 3, 
 CH(CH 3 )CH 2 —O-lower alkyl, 
 (CH 2 ) q CN, bicyclo[2.2.1]heptanyl, 
 (CH 2 ) q -cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is 
 (CH 2 ) q -heterocycloalkyl, (CH 2 ) q -aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or (CH 2 ) q -heteroaryl, 
 which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O) 2 -lower alkyl, cyano or by lower alkoxy; 
 q is 0, 1 or 2; 
 or a pharmaceutically active salt thereof. 
 
     
     
         35 . The compound of  claim 34 , which compound is selected from the group consisting of
 rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(morpholine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester or   [(3S,4R)-4-(4-Chloro-phenyl)-1-(3-morpholin-4-yl-propionyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         36 . The compound of  claim 1 , having formula Id 
       
         
           
           
               
               
           
         
       
       wherein
 R 1  is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen; 
 n is 1, 2 or 3, wherein when n is 2 or 3, each R 1  is the same or different; 
 R 2  is hydrogen or methyl; 
 R 6  is hydrogen, di-lower alkyl or ═O; 
 o and m are each independently 0, 1 or 2; 
 R 4  is lower alkyl, 
 lower alkyl substituted by halogen, 
 lower alkyl substituted by hydroxy, 
 lower alkyl substituted by cycloalkyl, 
 (CH 2 ) s —O-lower alkyl, wherein s is 2 or 3, 
 CH(CH 3 )CH 2 —O-lower alkyl, 
 (CH 2 ) q CN, bicyclo[2.2.1]heptanyl, 
 (CH 2 ) q -cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is 
 (CH 2 ) q -heterocycloalkyl, (CH 2 ) q -aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or (CH 2 ) q -heteroaryl, 
 which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O) 2 -lower alkyl, cyano or by lower alkoxy; 
 q is 0, 1 or 2; 
 or a pharmaceutically active salt thereof. 
 
     
     
         37 . The compound of  claim 37 , which compound is selected from the group consisting of
 rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(tetrahydro-pyran-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester;   [(3S,4R)-4-(4-Chloro-phenyl)-1-(tetrahydro-furan-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester; and   [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester.   
     
     
         38 . The compound of  claim 1 , having formula Ie 
       
         
           
           
               
               
           
         
       
       wherein
 R 1  is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen; 
 n is 1, 2 or 3, wherein when n is 2 or 3, each R 1  is the same or different; 
 R 2  is hydrogen or methyl; 
 R 4  is lower alkyl, 
 lower alkyl substituted by halogen, 
 lower alkyl substituted by hydroxy, 
 lower alkyl substituted by cycloalkyl, 
 (CH 2 ) s —O-lower alkyl, wherein s is 2 or 3, 
 CH(CH 3 )CH 2 —O-lower alkyl, 
 (CH 2 ) q CN, bicyclo[2.2.1]heptanyl, 
 (CH 2 ) q -cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is 
 (CH 2 ) q -heterocycloalkyl, (CH 2 ) q -aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or (CH 2 ) q -heteroaryl, 
 which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O) 2 -lower alkyl, cyano or by lower alkoxy; 
 q is 0, 1 or 2; 
 or a pharmaceutically active salt thereof. 
 
     
     
         39 . The compound of  claim 38 , which compound is
 rac-[(3R,4S)-1-(3-Carbamoyl-propionyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         40 . The compound of  claim 1 , having formula If 
       
         
           
           
               
               
           
         
       
       wherein
 R 1  is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen; 
 n is 1, 2 or 3, wherein when n is 2 or 3, each R 1  is the same or different; 
 R 2  is hydrogen or methyl; 
 R 6  is hydrogen, di-lower alkyl or ═O; 
 o and m are each independently 0, 1 or 2; 
 R 4  is lower alkyl, 
 lower alkyl substituted by halogen, 
 lower alkyl substituted by hydroxy, 
 lower alkyl substituted by cycloalkyl, 
 (CH 2 ) s —O-lower alkyl, wherein when s is 2 or 3, 
 CH(CH 3 )CH 2 —O-lower alkyl, 
 (CH 2 ) q CN, bicyclo[2.2.1]heptanyl, 
 (CH 2 ) q -cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is 
 (CH 2 ) q -heterocycloalkyl, (CH 2 ) q -aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or (CH 2 ) q -heteroaryl, 
 which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O) 2 -lower alkyl, cyano or by lower alkoxy; 
 q is 0, 1 or 2; 
 or a pharmaceutically active salt thereof. 
 
     
     
         41 . The compound of  claim 40 , which compound is
 [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         42 . The compound of  claim 1 , having formula Ig 
       
         
           
           
               
               
           
         
       
       wherein
 R 1  is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen; 
 n is 1, 2 or 3, wherein when n is 2 or 3, each R 1  is the same or different; 
 R 2  is hydrogen or methyl; 
 R 6  is hydrogen, di-lower alkyl or ═O; 
 o and m are each independently 0, 1 or 2; 
 R 4  is lower alkyl, 
 lower alkyl substituted by halogen, 
 lower alkyl substituted by hydroxy, 
 lower alkyl substituted by cycloalkyl, 
 (CH 2 ) s —O-lower alkyl, wherein when s is 2 or 3, 
 CH(CH 3 )CH 2 —O-lower alkyl, 
 (CH 2 ) q CN, bicyclo[2.2.1]heptanyl, 
 (CH 2 ) q -cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is 
 (CH 2 ) q -heterocycloalkyl, (CH 2 ) q -aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or (CH 2 ) q -heteroaryl, 
 which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O) 2 -lower alkyl, cyano or by lower alkoxy; 
 q is 0, 1 or 2; 
 or a pharmaceutically active salt thereof. 
 
     
     
         43 . The compound of  claim 43 , which compound is
 [(3S,4R)-4-(4-Chloro-phenyl)-1-(1,1-dioxo-hexahydro-1λ 6 -thiopyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.   
     
     
         44 . A pharmaceutical composition comprising a therapeutically effective amount of a compound of formula I 
       
         
           
           
               
               
           
         
       
       wherein
 R 1  is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen; 
 n is 1, 2 or 3, wherein when n is 2 or 3, each R 1  is the same or different; 
 R 2  is hydrogen or methyl; 
 R 3  is (CH 2 ) r —C(O)NH 2  or (CH 2 ) r —CN, wherein r is 1 or 2, or 
 is a non aromatic heterocyclic group 
 
       
         
           
           
               
               
           
         
       
       wherein
 X is N or CH; 
 Y is —C(R)(R 7 )—; —N(R 7′ )—, —S(O) 2  or O; 
 R 6  is hydrogen, di-lower alkyl or ═O; 
 o and m are each independently 0, 1 or 2; 
 p is 0, 1 or 2; 
 R is hydrogen, halogen, or lower alkyl; 
 R 7  is hydrogen, halogen, hydroxy, lower alkyl substituted by hydroxy, cyano, or lower alkoxy; 
 R 7′  is hydrogen, —C(O)-lower alkyl, —C(O)O-lower alkyl, —C(O)CH 2 O-lower alkyl, —C(O)CH 2 CN, or is 
 —C(O)-cycloalkyl, cycloalkyl or —CH 2 -cycloalkyl, 
 wherein the cycloalkyl groups are optionally substituted by halogen, lower alkoxy, lower alkyl substituted by halogen, cyano, —CH 2 O-lower alkyl, or lower alkyl, or is —C(O)-heterocycloalkyl, heterocycloalkyl, —C(O)-heteroaryl or heteroaryl, 
 which heterocycloalkyl or heteroaryl groups are optionally substituted by halogen, lower alkyl, ═O, lower alkoxy, lower alkyl substituted by halogen, C(O)NH-lower alkyl, C(O)NH 2 , C(O)-lower alkyl, S(O) 2 — lower alkyl or cyano; 
 Z is —O—, —NH— or —N(lower alkyl)-; 
 R 4  is lower alkyl, 
 lower alkyl substituted by halogen, 
 lower alkyl substituted by hydroxy, 
 lower alkyl substituted by cycloalkyl, 
 (CH 2 ) s —O-lower alkyl, wherein s is 2 or 3, 
 CH(CH 3 )CH 2 —O-lower alkyl, 
 (CH 2 ) q CN, bicyclo[2.2.1]heptanyl, 
 (CH 2 ) q -cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is 
 (CH 2 ) q -heterocycloalkyl, (CH 2 ) q -aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or (CH 2 ) q -heteroaryl, 
 which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O) 2 -lower alkyl, cyano or by lower alkoxy; 
 q is 0, 1 or 2; 
 or a pharmaceutically active salt thereof and a pharmaceutically acceptable carrier.

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