US2023128198A1PendingUtilityA1

Novel heterocyclic compounds useful as aurora a selective inhibitors

Assignee: JACOBIO PHARMACEUTICALS CO LTDPriority: Jan 22, 2020Filed: Jan 22, 2021Published: Apr 27, 2023
Est. expiryJan 22, 2040(~13.5 yrs left)· nominal 20-yr term from priority
C07D 413/14C07D 401/14C07D 417/14A61K 45/06C07D 405/14C07D 409/14A61P 35/00C07D 401/12A61P 35/04A61K 31/506A61K 31/4545C07D 407/14A61K 31/496A61K 2300/00A61K 31/5377C07D 451/02C07D 417/12C07D 471/08
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Claims

Abstract

Provided are compounds of formula (I), or pharmaceutically acceptable salts thereof, which can be used for inhibiting the activity of Aurora A and treating cancer mediated by Aurora A.

Claims

exact text as granted — not AI-modified
1 - 166 . (canceled) 
     
     
         167 . A compound of Formula VI or Formula VII, or a pharmaceutically acceptable salt thereof: 
       
         
           
           
               
               
           
         
         Y 1  is selected from CH or CR Y1 ; 
         Y 2  is selected from CH or CR Y2 ; 
         wherein R Y1  and R Y2  is independently selected from deuterium, —F, —Cl, —Br, —I, —CN, —OH, —NH 2 , —NO 2 , —NH(C 1-3 alkyl), —N(C 1-3 alkyl) 2 , —COOH, —CONH 2 , —CO—C 1-3 alkyl, —S—C 1-3 alkyl, —SO—C 1-3 alkyl, —SO 2 , —SO 2 C 1-3 alkyl, C 1-3 lkyl, C 1-3 alkoxy, —CO—C 3-6 heterocyclic ring, 3-membered carbocyclic ring, 4-membered carbocyclic ring, 5-membered carbocyclic ring, 6-membered carbocyclic ring, 7-membered carbocyclic ring, 8-membered carbocyclic ring, 5-membered aryl, 6-membered aryl, 3-membered heterocyclic ring, 4-membered heterocyclic ring, 5-membered heterocyclic ring, 6-membered heterocyclic ring, 7-membered heterocyclic ring, 8-membered heterocyclic ring, 5-membered heteroaryl or 6-membered heteroaryl, and each of the heterocyclic ring and heteroaryl independently optionally contains 1, 2 or 3 heteroatoms selected from N, O or S; and each of which is independently optionally substituted with deuterium, —F, —Cl, —Br, —I, —NH 2 , —CN, —OH, —NO 2 , carbonyl, ═O, oxo, carboxyl, C 1-3 alkoxy, C 1-3 alkyl, —NH(C 1-3 alkyl), —N(C 1-3 alkyl) 2 , —S—C 1-3 alkyl, or —SO 2 C 1-3 alkyl; 
         each X 1  and X 2  is independently selected from —H, deuterium, —CN, —OH, —NH 2 , C 1-3  alkyl, or C 1-3  alkoxy; 
         Y is selected from —(CH 2 ) m —CR 4 R 5 —(CH 2 ) m —; 
         m is independently 0; 
         R 4  and R 5  is independently selected from —H or deuterium; 
         Ar 2  is a 6-membered aryl, 5-membered heteroaryl or 9-membered heteroaryl, and each of the heteroaryl contains 1 or 2 heteroatoms selected from N, O or S; and each of which is independently optionally substituted with one or more of deuterium, —F, —Cl, —Br, —CN, —OH, —NH 2 , carbonyl, ═O, oxo, methyl, ethyl, propyl, isopropyl, methoxy, ethoxy, propoxy, isopropoxy, —CH 2 F, —CHF 2 , —CF 3 , —CH 2 D, CHD 2 , —CD 3 ; and 
         Ar 1  is 5-membered heteroaryl which contains 1, 2 or 3 heteroatoms selected from N or S, and which is independently optionally substituted with one or more of deuterium; —F; —Cl; —Br; —I; —CN; —OH; —NH 2 ; carbonyl; ═O; oxo; methyl; ethyl; propyl; isopropyl; methoxy; ethoxy; propoxy; isopropoxy; —CH 2 F, —CHF 2 , —CF 3 , —CH 2 D, CHD 2 , —CD 3 , —CH 2 NHmethyl, —CH 2 NHethyl, —CH 2 NHpropyl, —CH 2 NHisopropyl, —CH 2 N(CH 3 ) 2 . 
       
     
     
         168 . The compound or pharmaceutically acceptable salt thereof of  claim 167 , wherein R Y1  and R Y2  is independently selected from deuterium, —F, —Cl, —Br, —I, —CN, —OH, —NH 2 , —NO 2 , methyl, ethyl, propyl, isopropyl, methoxy, ethoxy, propoxy, isopropoxy, —NHmethyl, —NHethyl, —NHpropyl, —NHisopropyl, —N(CH 3 ) 2 , —COOH, —CONH 2 , —COCH 3 , —COCH 2 CH 3 , —CO—CH(CH 3 ) 2 , —SCH 3 , —SOCH 3 , —SO 2 , —SO 2 CH 3 , —CO-4-membered heterocyclic ring, —CO-5-membered heterocyclic ring, —CO-6-membered heterocyclic ring, 3-membered carbocyclic ring, 4-membered carbocyclic ring, 5-membered carbocyclic ring, 6-membered aryl, 3-membered heterocyclic ring, 4-membered heterocyclic ring, 5-membered heterocyclic ring, 6-membered heterocyclic ring, 5-membered heteroaryl or 6-membered heteroaryl, and each of the heterocyclic ring and heteroaryl independently optionally contains 1 or 2 heteroatoms selected from N, O or S; and each of which is independently optionally substituted with deuterium, —F, —Cl, —Br, —I, —NH 2 , —CN, —OH, —NO 2 , carbonyl, ═O, oxo, carboxyl, methyl, ethyl, propyl, isopropyl, methoxy, ethoxy, propoxy, isopropoxy;
 each X 1  and X 2  is independently selected from —H, deuterium, —CN, —OH, —NH 2 , methyl, ethyl, propyl, isopropyl, methoxy, ethoxy, propoxy, or isopropoxy; 
 Y is selected from —CH 2 —; 
 Ar 2  is a phenyl, and each of which is independently optionally substituted with one or more of deuterium, —F, —Cl, —Br, —CN, —OH, —NH 2 , carbonyl, ═O, oxo, methyl, ethyl, propyl, isopropyl, methoxy, ethoxy, propoxy, isopropoxy, —CH 2 F, —CHF 2 , —CF 3 , —CH 2 D, CHD 2 , —CD 3 ; or 
 Ar 1  is 
 
       
         
           
           
               
               
           
         
       
       and which is independently optionally substituted with one or more of deuterium, —F, —Cl, —Br, —I, —CN, —OH, —NH 2 , carbonyl, ═O, oxo, methyl, ethyl, propyl, isopropyl, methoxy, ethoxy, propoxy, or isopropoxy. 
     
     
         169 . The compound or pharmaceutically acceptable salt thereof of  claim 167 , wherein R Y1  and R Y2  is independently selected from deuterium, —F, —Cl, —Br, —I, —CN, —OH, —NH 2 , —NO 2 , methyl, ethyl, propyl, isopropyl, methoxy, ethoxy, propoxy, isopropoxy, —NHmethyl, —NHethyl, —NHpropyl, —NHisopropyl, —N(CH 3 ) 2 , —COOH, —CONH 2 , —COCH 3 , —COCH 2 CH 3 , —CO—CH(CH 3 ) 2 , —SCH 3 , —SOCH 3 , —SO 2 , —SO 2 CH 3 , 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
       and each of which is independently optionally substituted with deuterium, —F, —Cl, —NH 2 , —CN, —OH, carbonyl, ═O, oxo, carboxyl, methyl, ethyl, propyl, isopropyl, methoxy, ethoxy, propoxy, isopropoxy;
 each X 1  and X 2  is independently —H, methyl, or ethyl; 
 Ar 2  is 
 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         Ar 1  is 
       
       
         
           
           
               
               
           
         
       
     
     
         170 . The compound or pharmaceutically acceptable salt thereof of  claim 167 , wherein R Y1  and R Y2  is independently selected from deuterium, —F, —Cl, —CN, —OH, methyl, ethyl, isopropyl, —NHmethyl, —COOH, —COCH 3 , —COCH 2 CH 3 , —CO—CH(CH 3 ) 2 , —CO—C(CH 3 ) 3 , —COCF 3 , —SOCH 3 , —SO 2 , —SO 2 CH 3 , —CHF 2 , —CF 3 , —CH(F)CH 3 , —C(F) 2 CH 3 , —OCH 3 , —OCF 3 , —CH 2 OH, —CH 2 CH 2 OH, —CHOHCH 3 , —CH 2 F, —CH 2 D, CHD 2 , —CD 3 , —CH 2 CH 2 F, —CH 2 CHF 2 , —CH 2 CD 3 , —CH 2 CF 3 , —CH 2 CH 2 NH 2 , —CH 2 CH 2 NHCH 3 , —CH 2 CH 2 N(CH 3 ) 2 , —CH 2 CH 2 CH 2 F, —CH 2 CH 2 CD 3 , —CH 2 CH 2 CF 3 , —CH 2 N(CH 3 ) 2 , —CH(CH 3 )(CD 3 ), —CH(CF 3 ) 2 , —CH(CD 3 ) 2 , —CH 2 NHmethyl, —CH 2 NHethyl, —CH 2 NHpropyl, 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
     
     
         171 . The compound or pharmaceutically acceptable salt thereof of  claim 167 , wherein the compound is of Formula VII: 
       
         
           
           
               
               
           
         
       
       wherein,
 Y 1  is independently CH or CR Y1 ; 
 Y 2  is independently CH or CR Y2 ; 
 R Y1  and R Y2  is independently selected from deuterium, —F, —Cl, —Br, —I, —CN, —OH, —NH 2 , —CO—C 1-3  alkyl, C 1-3 lkyl, or C 1-3  alkoxy; and each of which is independently optionally substituted with deuterium or —F; 
 Y is selected from —CH 2 —; 
 each X 1  and X 2  is independently selected from —H, deuterium, —F, —Cl, —CN, —OH, —NH 2 , methyl, ethyl, propyl, isopropyl, methoxy, ethoxy, propoxy, or isopropoxy; 
 Ar 2  is a 6-membered aryl, and which is optionally substituted with one or more of deuterium, —F, —Cl, methyl, ethyl, propyl, isopropyl, —CH 2 D, CHD 2  or —CD 3 ; 
 Ar 1  is 5-membered heteroaryl which contains 1 or 2 heteroatoms selected from N or S, and which is independently optionally substituted with one or more of deuterium; —F; —Cl; —CN; methyl; ethyl; propyl; isopropyl; —CH 2 D, CHD 2 , —CD 3 . 
 
     
     
         172 . The compound or pharmaceutically acceptable salt thereof of  claim 171 , R Y1  and R Y2  is independently selected from deuterium, —F, —Cl, —Br, —I, —CN, —OH, methyl, ethyl, propyl, isopropyl, methoxy, ethoxy, propoxy, isopropoxy, —COCH 3 , —COCH 2 CH 3 , —CO—C(CH 3 ) 2 ; and each of which is independently optionally substituted with deuterium, or —F;
 each X 1  and X 2  is independently selected from —H or methyl; 
 Ar 2  is a phenyl, and which is optionally substituted with one or more of deuterium, —F, —Cl, methyl, ethyl, propyl, —CH 2 D, CHD 2  or —CD 3 ; 
 Ar 1  is 
 
       
         
           
           
               
               
           
         
       
       and which is independently optionally substituted with one or more of deuterium, —F, —CN, methyl, or ethyl. 
     
     
         173 . The compound or pharmaceutically acceptable salt thereof of  claim 171 , R Y1  and R Y2  is independently selected from deuterium, —F, —Cl, —CN, methyl, ethyl, isopropyl, —COCH 3 , —CHF 2 , —CF 3 , —COCH 3 , —COCH 2 CH 3 , —CO—C(CH 3 ) 2 , —CH(F) CH 3 , —C(F) 2 CH 3 , —CH 2 F, —CH 2 D, CHD 2 , —CD 3 , —CH 2 CH 2 F, —CH 2 CHF 2 , —CH 2 CD 3 , —CH 2 CH 2 CD 3 , —CH(CD 3 ) 2 , 
       
         
           
           
               
               
           
         
         Ar 2  is 
       
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         Ar 1  is 
       
       
         
           
           
               
               
           
         
       
     
     
         174 . The compound or pharmaceutically acceptable salt thereof of  claim 167 , wherein the compound is 
       
         
           
                 
                 
               
                     
                 
                   1. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)piperidine-4-carboxylic acid 
                 
                   2. 
                   1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   3. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)-2,6-dimethylpiperidine-4-carboxylic acid 
                 
                   4. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-(thiazol-2-ylamino)pyridin-2-yl)methyl)-2- 
                 
                     
                   methylpiperidine-4-carboxylic acid 
                 
                   5. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((5-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   6. 
                   (2R,4R)-1-(3-chloro-2,6-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   8. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   9. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-cyclopropyl-3-fluoro-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   12. 
                   (2R,4R)-1-(2,6-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   13. 
                   (2R,4R)-1-(2,6-dimethylbenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   14. 
                   (2R,4R)-1-(2,3-dichlorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   15. 
                   (2R,4R)-1-(2,3-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   16. 
                   (2R,4R)-1-(2-fluoro-3-methylbenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   17. 
                   (2R,4R)-1-(2,6-dichlorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   18. 
                   (2R,4R)-1-(3-chloro-4-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   19. 
                   (2R,4R)-1-(4-chloro-3-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   20. 
                   (2R,4R)-1-(3,5-dichlorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   21. 
                   (2R,4R)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methyl- 
                 
                     
                   1-(3-(trifluoromethyl)benzyl)piperidine-4-carboxylic acid 
                 
                   22. 
                   (2R,4R)-1-(3,4-dichloro-5-fluorobenzyl)-4-((3 -fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   23. 
                   (2R,4R)-1-(3,5-dichloro-4-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   24. 
                   (2R,4R)-1-(3,5-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   27. 
                   (2R,4R)-1-(3-chloro-2,4-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   34. 
                   (2R,4R)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methyl- 
                 
                     
                   1-(2-(trifluoromethyl)benzyl)piperidine-4-carboxylic acid 
                 
                   35. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-5-methyl-6-((3-methyl-1H-pyrazol-5- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   44. 
                   (2R,4R)-1-(2-(3-chloro-2-fluorophenyl)-2-oxoethyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   46. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4-(oxetan- 
                 
                     
                   3-yl)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   47. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(3-hydroxyoxetan-3-yl)-6-((5-methyl- 
                 
                     
                   1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   48. 
                   (2R,4R)-1-(3 -chloro-2-fluorobenzyl)-4-((3-fluoro-4-(3fluorooxetan-3-yl)-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   49. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-methyl-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   50. 
                   (2R,4R)-1-(3-chloro-2,6-difluorobenzyl)-4-((3-fluoro-4-methyl-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   51. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-methyl-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   52. 
                   1-(2,3-difluorobenzyl)-4-((3-fluoro-4-methyl-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   53. 
                   (2R,4R)-1-(2,3-dichlorobenzyl)-4-((3-fluoro-4-methyl-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   54. 
                   1-(2,3-dichlorobenzyl)-4-((3-fluoro-4-methyl-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   55. 
                   1-(3-chloro-2,6-difluorobenzyl)-4-((3-fluoro-4-methyl-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   61. 
                   (2R,4R)-1-(2,3-difluorobenzyl)-4-((3-fluoro-4-methyl-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   62. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(2-hydroxypropan-2-yl)-6-((5-methyl- 
                 
                     
                   1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   63. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-isopropyl-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   64. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-(difluoromethyl)-3-fluoro-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   65. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-ethyl-3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   66. 
                   1-(3-chloro-2-fluorobenzyl)-4-((4-ethyl-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   67. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-cyano-3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   68. 
                   (2R,4R)-4-((4-acetyl-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-1- 
                 
                     
                   (3-chloro-2-fluorobenzyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   69. 
                   4-((4-acetyl-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-1-(3-chloro- 
                 
                     
                   2-fluorobenzyl)piperidine-4-carboxylic acid 
                 
                   70. 
                   (2R,4R)-4-((4-acetyl-5-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)- 
                 
                     
                   1-(3-chloro-2-fluorobenzyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   71. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-(1,1-difluoroethyl)-3-fluoro-6-((5-methyl-IH- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   72. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-chloro-3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   73. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-chloro-5-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   74. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-chloro-3,5-difluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   75. 
                   (2R,4R)-4-((4-(azetidin-1-yl)-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)-1-(3-chloro-2-fluorobenzyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   76. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(1-hydroxyethyl)-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   77. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(1-fluoroethyl)-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   78. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((5-fluoro-4-methyl-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   79. 
                   1-(3-chloro-2-fluorobenzyl)-4-((5-fluoro-4-methyl-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   80. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   propionylpyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   81. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   (methylsulfonyl)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   82. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((5-fluoro-3,4-dimethyl-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   83. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3′-fluoro-6′-((5-methyl-1H-pyrazol-3-yl)amino)-[2,4′- 
                 
                     
                   bipyridin]-2′-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   85. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-isobutyryl-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   90. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-cyano-5-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   91. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3,5-difluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   92. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3,5-difluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   93. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3,5-difluoro-4-methyl-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   94. 
                   (2R,4R)-4-((6-((1H-pyrazol-3-yl)amino)-3-fluoro-4-(2-fluoropropan-2-yl)pyridin-2- 
                 
                     
                   yl)methyl)-1-(3-chloro-2-fluorobenzyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   96. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((4-fluoro-5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   97. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)-2-(trifluoromethyl)piperidine-4-carboxylic acid 
                 
                   100. 
                   (2R,4R)-1-(2-chloro-6-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   101. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-cyano-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   102. 
                   1-(3-chloro-2-fluorobenzyl)-4-((6-((4,5-dimethyl-1H-pyrazol-3-yl)amino)-3-fluoropyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   103. 
                   1-(3-chloro-2-fluorobenzyl)-4-((6-((4-cyano-5-methyl-1H-pyrazol-3-yl)amino)-3-fluoropyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   104. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-cyano-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   106. 
                   1 -(3 -chloro-2-fluorobenzyl)-4-((3-fluoro-4-(3-hydroxy oxetan-3-yl)-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   107. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(3-hydroxyazetidin-1-yl)-6-((5-methylthiazol-2- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   108. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4-(4- 
                 
                     
                   methylpiperazin-1-yl)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   122. 
                   (2R,4R)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-1- 
                 
                     
                   (2-(trifluoromethyl)benzyl)piperidine-4-carboxylic acid 
                 
                   130. 
                   (2R,6R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2,6-dimethylpiperidine-4-carboxylic acid 
                 
                   131. 
                   (3R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-3-methylpiperidine-4-carboxylic acid 
                 
                   132. 
                   (2R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   133. 
                   (2R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   134. 
                   1-(3-chloro-2,6-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   135. 
                   (2R)-1-(3-chloro-2,6-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   136. 
                   (2R)-1-(3-chloro-2,6-difluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   137. 
                   1-(3-chloro-2,4-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   138. 
                   (2R)-1-(3-chloro-2,4-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   139. 
                   (2R)-1-(3-chloro-2,4-difluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   140. 
                   1-(2,3-dichlorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)piperidine-4-carboxylic acid 
                 
                   141. 
                   (2R)-1-(2,3-dichlorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   142. 
                   (2R)-1-(2,3-dichlorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   143. 
                   1-(2,3-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)piperidine-4-carboxylic acid 
                 
                   144. 
                   (2R)-1-(2,3-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   145. 
                   (2R)-1-(2,3-difluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   146. 
                   1-(3-chloro-2-fluoro-6-methylbenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   147. 
                   (2R)-1-(3-chloro-2-fluoro-6-methylbenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   148. 
                   (2R)-1-(3-chloro-2-fluoro-6-methylbenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   149. 
                   1-(3-chloro-2-methylbenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)piperidine-4-carboxylic acid 
                 
                   150. 
                   (2R)-1-(3-chloro-2-methylbenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   151. 
                   (2R)-1-(3-chloro-2-methylbenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   152. 
                   4-((6-((1H-pyrazol-3-yl)amino)-3-fluoropyridin-2-yl)methyl)-1-(2-fluoro-3- 
                 
                     
                   methylbenzyl)piperidine-4-carboxylic acid 
                 
                   153. 
                   (2R)-4-((6-((1H-pyrazol-3-yl)amino)-3-fluoropyridin-2-yl)methyl)-1-(2-fluoro-3- 
                 
                     
                   methylbenzyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   154. 
                   (2R)-4-((6-((1H-pyrazol-3-yl)amino)-3-fluoropyridin-2-yl)methyl)-2-ethyl-1-(2-fluoro-3- 
                 
                     
                   methylbenzyl)piperidine-4-carboxylic acid 
                 
                   155. 
                   4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-1-(2- 
                 
                     
                   fluorobenzyl)piperidine-4-carboxylic acid 
                 
                   156. 
                   (2R)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-1-(2- 
                 
                     
                   fluorobenzyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   157. 
                   (2R)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-1-(2- 
                 
                     
                   fluorobenzyl)piperidine-4-carboxylic acid 
                 
                   158. 
                   1-(2,6-dichlorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)piperidine-4-carboxylic acid 
                 
                   159. 
                   (2R)-1-(2,6-dichlorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   160. 
                   (2R)-1-(2,6-dichlorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   161. 
                   1-(2,6-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)piperidine-4-carboxylic acid 
                 
                   162. 
                   (2R)-1-(2,6-difluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   163. 
                   (2R)-1-(2,6-difluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   164. 
                   1-(3-chloro-2-fluoro-4-methylbenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   165. 
                   (2R)-1-(3-chloro-2-fluoro-4-methylbenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   166. 
                   (2R)-1-(3-chloro-2-fluoro-4-methylbenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   178. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   179. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-4-(3-hydroxyoxetan-3-yl)-6-((5- 
                 
                     
                   methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   180. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   (oxetan-3-yl)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   181. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)-4-(oxetan-3-yl)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   182. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(3-hydroxyazetidin-1-yl)-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   183. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-4-(3-hydroxyazetidin-1-yl)-6-((5- 
                 
                     
                   methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   184. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(3-hydroxyazetidin-1-yl)-6-((5-methyl- 
                 
                     
                   1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   185. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   (4-methylpiperazin-1-yl)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   186. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)-4-(4-methylpiperazin-1-yl)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   187. 
                   (2R,4R)-4-((4-(azetidin-3-yl)-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2- 
                 
                     
                   yl)methyl)-1-(3-chloro-2-fluorobenzyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   188. 
                   4-((4-(azetidin-3-yl)-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-1- 
                 
                     
                   (3-chloro-2-fluorobenzyl)piperidine-4-carboxylic acid 
                 
                   189. 
                   (2R,4R)-4-((4-(azetidin-3-yl)-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl) 
                 
                     
                   methyl)-1-(3-chloro-2-fluorobenzyl)-2-ethylpiperidine-4-carboxylic acid 
                 
                   190. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   (l-methylazetidin-3-yl)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   191. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4-(1- 
                 
                     
                   methylazetidin-3-yl)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   192. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)-4-(l-methylazetidin-3-yl)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   193. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-4-methyl-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   194. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((4-ethyl-3-fluoro-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   195. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-isopropyl-6-((5-methyl-1H-pyrazol-3-yl)amino) 
                 
                     
                   pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   196. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-4-isopropyl-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   197. 
                   1-(3-chloro-2-fluorobenzyl)-4-((4-cyclopropyl-3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   198. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-cyclopropyl-3-fluoro-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)-2-ethylpiperidine-4-carboxylic acid 
                 
                   199. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(2-hydroxypropan-2-yl)-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   200. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-4-(2-hydroxypropan-2-yl)-6-((5- 
                 
                     
                   methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   201. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   phenylpyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   202. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   phenylpyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   203. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)-4-phenylpyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   204. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(l-hydroxycyclopropyl)-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   205. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(l-hydroxycyclopropyl)-6-((5-methyl- 
                 
                     
                   1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   206. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-4-(l-hydroxycyclopropyl)-6-((5- 
                 
                     
                   methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   207. 
                   (2R,4R)-4-((4-(azetidin-1-yl)-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl) 
                 
                     
                   methyl)-1-(3-chloro-2-fluorobenzyl)-2-ethylpiperidine-4-carboxylic acid 
                 
                   208. 
                   4-((4-(azetidin-1-yl)-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-1- 
                 
                     
                   (3-chloro-2-fluorobenzyl)piperidine-4-carboxylic acid 
                 
                   209. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-(difluoromethyl)-3-fluoro-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-ethylpiperidine-4-carboxylic acid 
                 
                   210. 
                   1-(3-chloro-2-fluorobenzyl)-4-((4-(difluoromethyl)-3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   211. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)-4-(trifluoromethyl)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   212. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   (trifluoromethyl)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   213. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   (trifluoromethyl)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   214. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-2-ethyl-4-((3-fluoro-4-(l-hydroxycyclobutyl)-6-((5- 
                 
                     
                   methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   215. 
                   1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(l-hydroxycyclobutyl)-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   216. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(l-hydroxycyclobutyl)-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   217. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-cyclobutyl-3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-ethylpiperidine-4-carboxylic acid 
                 
                   218. 
                   1-(3-chloro-2-fluorobenzyl)-4-((4-cyclobutyl-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino) 
                 
                     
                   pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   219. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-cyclobutyl-3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   220. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((4-cyano-3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)-2-ethylpiperidine-4-carboxylic acid 
                 
                   221. 
                   1-(3-chloro-2-fluorobenzyl)-4-((4-cyano-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin- 
                 
                     
                   2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   324. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   (methylamino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   325. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-isopropoxy-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   326. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(l-fluorocyclopropyl)-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   327. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(2-hydroxyethyl)-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   336. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-(2-fluoro-1,3-dihydroxypropan-2-yl)-6- 
                 
                     
                   ((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic 
                 
                     
                   acid 
                 
                   338. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   morpholinopyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   342. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   (3-methyloxetan-3-yl)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   346. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)-4- 
                 
                     
                   (trifluoromethoxy)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   348. 
                   1-(3-chloro-2,6-difluorobenzyl)-4-((4-ethyl-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino) 
                 
                     
                   pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   349. 
                   4-((4-acetyl-3-fluoro-6-((5-methyl-1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-1-(3-chloro- 
                 
                     
                   2,6-difluorobenzyl)piperidine-4-carboxylic acid 
                 
                   465. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3,5-difluoro-4-((R)-1-fluoroethyl)-6-((5-methyl- 
                 
                     
                   1H-pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   480. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3,5-difluoro-4-isobutyryl-6-((5-methyl-1H-pyrazol- 
                 
                     
                   3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   482. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-((R)-1-fluoroethyl)-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   483. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3-fluoro-4-((S)-1-fluoroethyl)-6-((5-methyl-1H- 
                 
                     
                   pyrazol-3-yl)amino)pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid 
                 
                   491. 
                   1-(3-chloro-2-fluorobenzyl)-4-((4-(1,1-difluoroethyl)-3-fluoro-6-((5-methyl-1H-pyrazol-3- 
                 
                     
                   yl)amino)pyridin-2-yl)methyl)piperidine-4-carboxylic acid 
                 
                   492. 
                   (2R,4R)-1-(3-chloro-2-fluorobenzyl)-4-((3,4-difluoro-6-((5-methyl-1H-pyrazol-3-yl)amino) 
                 
                     
                   pyridin-2-yl)methyl)-2-methylpiperidine-4-carboxylic acid. 
                 
                     
                 
             
                
               
               
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         175 . A pharmaceutical composition comprising a therapeutically effective amount of at least one compound or pharmaceutically acceptable salt thereof of  claim 167  and at least one pharmaceutically acceptable excipient. 
     
     
         176 . The pharmaceutical composition of  claim 175 , wherein, the said compound or pharmaceutically acceptable salt thereof in a weight ratio to the said excipient within the range from about 0.0001 to about 10. 
     
     
         177 . The pharmaceutical composition of  claim 175 , further comprising at least one of additional active ingredient. 
     
     
         178 . A method of treating a patient, comprising administering to the patient a therapeutically effective amount of at least one compound or pharmaceutically acceptable salt thereof as defined in  claim 167 . 
     
     
         179 . A method for the treatment or prevention of cancer or cancer metastasis, comprising administering to the patient a therapeutically effective amount of at least one compound or pharmaceutically acceptable salt thereof as defined in  claim 167 . 
     
     
         180 . The method of  claim 179 , wherein the cancer is selected from the group consisting of small cell lung cancer, colorectal cancer, gastric cancer, prostate cancer, breast cancer, triple-negative breast cancer, cervical cancer, head and neck cancer, esophageal cancer, ovarian cancer, non-small cell lung cancer, non-Hodgkin lymphoma, or any of combination thereof. 
     
     
         181 . The method of  claim 179 , wherein the cancer is selected from small cell lung cancer, prostate cancer, triple-negative breast cancer, cervical cancer, or head and neck cancer. 
     
     
         182 . A method of treating a patient having a condition which is mediated by the activity of Aurora A, said method comprising administering to the patient a therapeutically effective amount of at least one compound or pharmaceutically acceptable salt thereof as defined in  claim 167 . 
     
     
         183 . The method of  claim 182 , wherein the condition mediated by the activity of Aurora A is cancer. 
     
     
         184 . The method of  claim 182 , wherein the condition mediated by the activity of Aurora A is small cell lung cancer, colorectal cancer, gastric cancer, prostate cancer, breast cancer, triple-negative breast cancer, cervical cancer, head and neck cancer, esophageal cancer, ovarian cancer, non-small cell lung cancer, non-Hodgkin lymphoma, or any of combination thereof. 
     
     
         185 . The method of  claim 183 , wherein the cancer is selected from small cell lung cancer, prostate cancer, triple-negative breast cancer, cervical cancer, or head and neck cancer. 
     
     
         186 . A method of treating cancer selected from the group consisting of small cell lung cancer, colorectal cancer, gastric cancer, prostate cancer, breast cancer, triple-negative breast cancer, cervical cancer, head and neck cancer, esophageal cancer, ovarian cancer, non-small cell lung cancer, or non-Hodgkin lymphoma in a mammal comprising administering to a mammal in need of such treatment an effective amount of at least one compound or pharmaceutically acceptable salt thereof as defined in  claim 167 .

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