[EN] SYNTHESIS OF DULOXETINE AND/OR PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF<br/>[FR] SYNTHÈSE DE DULOXÉTINE ET/OU DE SES SELS PHARMACEUTIQUEMENT ACCEPTABLES DE CELLE-CI
申请人:KRKA D D NOVO MESTO
公开号:WO2011128370A1
公开(公告)日:2011-10-20
The invention describes an improved process for the synthesis of duloxetine and/or pharmaceutically acceptable salts thereof enabling preparation of duloxetine and/or pharmaceutically acceptable salts thereof with high chemical and enatiomeric purity. The process includes addition of an organic acid in the phase of formation of a duloxetine salt with an acid, preferably in the form of hydrochloride, and optionally in the phase of recrystallization of the formed duloxetine salt, wherein an organic acid is preferably selected from the group comprising formic acid, acetic acid, propanoic acid, butanoic acid or any mixtures thereof, more preferably acetic acid.
本发明描述了一种改进的杜氯嗪合成过程及其药学上可接受的盐,使得可以高纯度地制备杜氯嗪及其药学上可接受的盐。该过程包括在形成杜氯嗪盐的阶段中添加有机酸,优选为盐酸形式,并且在所形成的杜氯嗪盐的再结晶阶段中也可以添加有机酸。所述有机酸优选从包括甲酸、乙酸、丙酸、丁酸或任何混合物的群组中选择,更优选为乙酸。