[EN] A PROCESS FOR THE PREPARATION OF DONEPEZIL HYDROCHLORIDE<br/>[FR] PROCÉDÉ DE PRÉPARATION D'HYDROCHLORURE DE DONÉPÉZIL
申请人:NEULAND LAB LTD
公开号:WO2011051957A2
公开(公告)日:2011-05-05
The present invention is directed to an improved industrially viable, cost effective process for manufacturing 1 -benzyl-4-(5,6,-dimethoxyindanone-2-yl)methylpiperidine hydrochloride commonly known as donepezil hydrochloride in a substantially pure form with a purity level of greater than 99.9% and a novel crystalline form of 1- benzyl-4-(5,6,-dimethoxyindanone-2-yI)methylpiperidine in a substantially pure form.