[EN] PROCESS FOR THE PREPARATION OF ROPINIROLE<br/>[FR] PROCEDE D'OBTENTION DE ROPINIROLE
申请人:URQUIMA SA
公开号:WO2005040115A1
公开(公告)日:2005-05-06
A new process for the preparation of Ropinirole (1) and pharmaceutically acceptable hydrochloride salt thereof comprising reacting the compound (V) with nitromethane to obtain the compound of formula (II), which is reduced to compound (III) and alkylated to obtain compound (IV). The oxidation of the indole ring provides the compound of formula (I).
A new process for the preparation of Ropinirole (1) and pharmaceutically acceptable hydrochloride salt thereof comprising reacting the compound (V) with nitromethane to obtain the compound of formula (II), which is reduced to compound (III) and alkylated to obtain compound (IV). The oxidation of the indole ring provides the compound of formula (I).
Controllable transformation of indoles using iodine(<scp>iii</scp>) reagent
作者:Yinxiang Jian、Peng Liang、Xiaoyan Li、Huawu Shao、Xiaofeng Ma
DOI:10.1039/d2ob01951e
日期:——
combination of phenyliodinebis(trifluoroacetate) (PIFA) with n-Bu4NCl·H2O (TBAC) was exploited. Through controlling the amount of PIFA and TBAC from one to three equivalents, 3-chloro-indoles, 3-chloro-2-oxindoles, and 3,3-dichloro-2-oxindoles were obtained, respectively, in satisfactory to excellent yields. The advantages of the protocol include mild conditions, facile process with short reaction time, high