[EN] PROCESS FOR PREPARATION OF PHENOXYPROPANOL AMINES<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE PHÉNOXYPROPANOLAMINES
申请人:INDOCO REMEDIES LTD
公开号:WO2010029566A2
公开(公告)日:2010-03-18
The present invention describes an improved method for the preparation of l-[4-2- (cyclopropylmethoxy)ethyl}phenoxy]-3-[(1-methylethyl)amino]-2-propanol of Formula-(I) and its pharmaceutically acceptable salt, which comprises reacting 4 - [ 2 — (Cyclopropylmethoxy) ethyl] phenol with epichlorohydrin in presence of mild base and polar protic solvent to isolate 1 - 4 - [2 - (cyclopropylmethoxy)ethyl] - phenoxy} - 2, 3 - epoxy propane, which is further reacted with isopropyl amine to get betaxolol formula (I).