Method for producing (R)-3-[4-(trifluoromethyl) phenylamino]-pentanoic acid amide derivative
申请人:Pfizer Inc.
公开号:US07223859B2
公开(公告)日:2007-05-29
The present invention provides a method for easily producing an (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide derivative useful for an intermediate for pharmaceutical products, particularly an inhibitor of a cholesteryl ester transfer protein (CETP) from easily available raw materials. In the present invention, (S)-N-[4-(trifluoromethyl)phenyl]-3-hydroxypentanoic acid amide prepared from easily available raw materials leads a production of (R)-4-ethyl-1-[4-(trifluoromethyl)phenyl]-2-azetidinone to give (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide. Furthermore, (R)-4-ethyl-1-[4-(trifluoromethyl)phenyl]-2-azetidinone is reacted with a carbamic acid ester to give an (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide derivative.
PROCESSES FOR PRODUCTION OF (R)-3- 4-(TRIFLUOROMETHYL)- PHEN YLAMINO PENTANAMIDE DERIVATIVES
申请人:KANEKA CORPORATION
公开号:EP1604975A1
公开(公告)日:2005-12-14
The present invention provides a method for easily producing an (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide derivative useful for an intermediate for pharmaceutical products, particularly an inhibitor of a cholesteryl ester transfer protein (CETP) from easily available raw materials.
In the present invention, (S)-N-[4-(trifluoromethyl)phenyl]-3-hydroxypentanoic acid amide prepared from easily available raw materials leads a production of (R)-4-ethyl-1-[4-(trifluoromethyl)phenyl]-2-azetidinone to give (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide. Furthermore, (R)-4-ethyl-1-[4-(trifluoromethyl)phenyl]-2-azetidinone is reacted with a carbamic acid ester to give an (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide derivative.
[EN] PROCESSES FOR PRODUCTION OF (R)-3-[4-(TRIFLUOROMETHYL)- PHENYLAMINO]PENTANAMIDE DERIVATIVES<br/>[FR] PROCEDES DE PRODUCTION DE DERIVES DE (R)-3-[4-(TRIFLUOROMETHYL)-PHENYLAMINO]PENTANAMIDE