PROCESSES FOR PREPARING INTERMEDIATE COMPOUNDS USEFUL FOR THE PREPARATION OF EZETIMIBE
申请人:Gavalda I Escude Ana
公开号:US20090227786A1
公开(公告)日:2009-09-10
The invention relates, in general, to an improved process for the preparation of the compounds (3R,4S)-4-(4-(benzyloxy)phenyl)-1-(4-fluorophenyl)-3-[3-(4-fluorophenyl)-3-oxopropyl]azetidin-2-one and (3R,4S)-1-(4-fluorophenyl)-3-[3-(4-fluorophenyl)-3-oxopropyl]-4-(4-hydroxyphenyl)-azetidin-2-one, which are key intermediates for the synthesis of ezetimibe, as well as the use of these intermediates for the preparation of ezetimibe.
本发明总体上涉及一种改进的制备化合物(3R,4S)-4-(4-(苄氧基)苯基)-1-(4-氟苯基)-3-[3-(4-氟苯基)-3-氧代丙基]唑定烷-2-酮和(3R,4S)-1-(4-氟苯基)-3-[3-(4-氟苯基)-3-氧代丙基]-4-(4-羟基苯基)唑定烷-2-酮的过程,这些化合物是合成依泽替米贝的关键中间体,以及使用这些中间体制备依泽替米贝的方法。