申请人:Chava Satyanarayana
公开号:US20080234495A1
公开(公告)日:2008-09-25
The present invention encompasses a method for the preparation of Almotriptan and its pharmaceutically acceptable salts comprises, i) Methylation of 3-[5-(1-Pyrrolidinyl sulfonyl methyl) 1H-indol-yl]ethane amine ii) Treating crude Almotriptan with a hydroxy benzoic acid yields hydroxy benzoic acid addition salt of Almotriptan iii) Converting Almotriptan hydroxy benzoic acid addition salt to Almotriptan and iv) Salification of Almotriptan to its pharmaceutically acceptable salts
本发明涵盖了一种制备阿莫曲普坦及其药用可接受盐的方法,包括i)对3-[5-(1-吡咯烷基磺酰甲基) 1H-吲哚基]乙胺进行甲基化,ii)用羟基苯甲酸处理粗阿莫曲普坦得到阿莫曲普坦的羟基苯甲酸加盐物,iii)将阿莫曲普坦的羟基苯甲酸加盐物转化为阿莫曲普坦和iv)将阿莫曲普坦盐化为其药用可接受盐。