[EN] REGIOSELECTIVE SYNTHESIS OF LETROZOLE<br/>[FR] SYNTHÈSE RÉGIOSÉLECTIVE DE LÉTROZOLE
申请人:GENERICS UK LTD
公开号:WO2010146391A1
公开(公告)日:2010-12-23
The present invention relates to an improved process for the preparation of letrozole (I) and its pharmaceutically acceptable salts, to compositions comprising letrozole or a pharmaceutically acceptable salt thereof, and to uses of such compositions. In particular it relates to a process and to novel intermediates for preparing letrozole and its salts substantially free from regioisomeric impurities.
本发明涉及一种改进的来曲唑(I)及其药用可接受盐的制备方法,涉及包含来曲唑或其药用可接受盐的组成物,以及这些组成物的用途。特别是,它涉及一种几乎不含区域异构体杂质来曲唑及其盐的制备过程和新型中间体。