申请人:Serafini Siro
公开号:US20110166364A1
公开(公告)日:2011-07-07
The present invention refers to the synthesis of 3-[(2R)-1-methylpyrrolidin-2-yl]methyl}-5-[2-(phenylsulfonyl)ethyl]-1H-indole, a drug known by the name Eletriptan, or of its salts. In particular, the present invention regards a process for the synthesis of Eletriptan or of its salt, comprising the following steps: a) Salifying the intermediate of Formula (6), using a dicarboxylic acid to obtain a derived salt; b) Optionally, purifying said raw salt obtained according to step a) by solvent crystallization to obtain a purified salt of the intermediate of Formula (6); c) Converting said salt of the intermediate of formula (6) according to step a) or said purified salt according to step b) into an intermediate of formula (10); d) Converting the intermediate of Formula (10) into Eletriptan or its salt.
本发明涉及合成3-[(2R)-1-甲基吡咯烷-2-基]甲基}-5-[2-(苯磺酰基)乙基]-1H-吲哚,一种以Eletriptan命名的药物或其盐。具体而言,本发明涉及一种用于合成Eletriptan或其盐的方法,包括以下步骤:a) 用二羧酸盐化式(6)的中间体,以获得衍生盐;b) 可选地,通过溶剂结晶纯化根据步骤a)获得的原始盐,以获得式(6)的中间体的纯化盐;c) 将根据步骤a)获得的式(6)的中间体的盐或根据步骤b)获得的纯化盐转化为式(10)的中间体;d) 将式(10)的中间体转化为Eletriptan或其盐。