ENZYMATIC PROCESS FOR THE PREPARATION OF (S)-5-(4-FLUORO-PHENYL)-5-HYDROXY- 1MORPHOLIN-4-YL-PENTAN-1-ONE, AN INTERMEDIATE OF EZETIMIBE AND FURTHER CONVERSION TO EZETIMIBE
[EN] NOVEL PROCESS FOR THE PREPARATION OF EZETIMIBE INTERMEDIATES<br/>[FR] NOUVEAU PROCÉDÉ DE PRÉPARATION D'INTERMÉDIAIRES D'ÉZÉTIMIBE
申请人:PHARMATHEN SA
公开号:WO2015039675A1
公开(公告)日:2015-03-26
The present invention provides a novel process for the preparation of compounds useful as intermediates for the production of Ezetimibe.
本发明提供了一种新的制备化合物的方法,这些化合物可用作生产依泽替米布中间体的原料。
Enzymatic process for the preparation of (S)-5-(4-fluoro-phenyl)-5-hydroxy-1morpholin-4-yl-pentan-1-one, an intermediate of Ezetimibe and further conversion to Ezetimibe
申请人:Husain Mofazzal
公开号:US09388440B2
公开(公告)日:2016-07-12
The present invention provides an enzymatic process for the preparation of (S)-5-(4-Fluoro-phenyl)-5-hydroxy-1morpholin-4-yl-pentan-1-one by the reduction of 1-(4-Fluoro-phenyl)-5-morpholin-4-yl-pentane-1,5-dione by using a suitable enzyme or by the resolution of (R,S)-5-(4-Fluoro-phenyl)-5-hydroxy-1morpholin-4-yl-pentan-1-one by using an enzyme. The present invention also provides process for the preparation of Ezetimibe comprising the steps of a) protecting the compound (S)-5-(4-Fluoro-phenyl)-5-hydroxy-1morpholin-4-yl-pentan-1-one with hydroxy protecting group b) hydrolyzing the obtained compound c) condensing with a chiral auxiliary d) reacting with an protected imine compound e) converting to alkyl ester f) cyclizing and g) deprotecting to obtain Ezetimibe.