[EN] AN IMPROVED PROCESS FOR THE PREPARATION OF PRASUGREL HYDROCHLORIDE AND ITS INTERMEDIATES<br/>[FR] PROCÉDÉ PERFECTIONNÉ POUR LA PRÉPARATION DE CHLORHYDRATE DE PRASUGREL ET DE SES INTERMÉDIAIRES
申请人:MAYUKA LABS PVT LTD
公开号:WO2012001486A1
公开(公告)日:2012-01-05
The present invention provides an improved process for the preparation of prasugrel and its pharmaceutical acceptable salt. Prasugrel chemically known as 2-acetoxy-5-(a- cyclopropylcarbonyl-2-fluorobenzyl)-4,5,6,7-tetrahydrothieno[3,2-c]-pyridine or 5-[2- cyclopropyl-l-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7-tetrahydrothieno[3,2,-c]pyridine- 2yl acetate and having the structural formula (I) and its pharmaceutically acceptable salts. The present invention also provides an improved process for the preparation of cyclopropyl 2-fluorobenzyl ketone, 2-Fluoro-a-cyclopropyl carbonylbenzyl bromide, 5,6,7,7a Tetrahydro-4H- theino-[3,2-c]- pyridone-2 p-toluenesulfonate and its hydrochloride salt.
本发明提供了一种改进的制备prasugrel及其药用可接受的盐的过程。prasugrel在化学上被称为2-乙酰氧基-5-(a-环丙基羰基-2-氟苯甲基)-4,5,6,7-四氢噻吩[3,2-c]-吡啶或5-[2-环丙基-1-(2-氟苯基)-2-氧基乙基]-4,5,6,7-四氢噻吩[3,2,-c]吡啶-2基醋酸酯,具有结构式(I)及其药用可接受的盐。本发明还提供了一种改进的制备环丙基-2-氟苯甲基酮、2-氟-a-环丙基羰基苯甲基溴化物、5,6,7,7a-四氢-4H-噻吩[3,2-c]-吡啶-2-对甲苯磺酸盐及其盐酸盐的过程。