Process for the synthesis of ezetimibe and intermediates useful therefor
申请人:LEK Pharmaceuticals d.d.
公开号:EP2149547A1
公开(公告)日:2010-02-03
The present invention discloses novel and useful intermediates for the synthesis of ezetimibe (EZT), which intermediates share a characteristic Z-isomeric structure. Based on Z-5-(4-fluorophenyl)-pent-4-enoic acid, and proceeding the synthesis through further Z-intermediates, a total synthesis is presented to obtained final ezetimibe in high yields.
A convenient and efficient total synthesis of ezetimibe, an intestinal cholesterol absorption inhibitor and useful anticholesteremic agent, is described. Based on (Z)-5-(4-fluorophenyl)pent-4-enoic acid as a starting compound, and taking the synthesis through further Z-configured intermediates, the total yield is remarkably increased, compared with the use of the corresponding E-configured starting substances or intermediates.