PROCESS FOR PREPARATION OF CLOPIDOGREL BISULPHATE FORM-1
申请人:ALLA Venkat Reddy
公开号:US20070191609A1
公开(公告)日:2007-08-16
Disclosed herein is a cost effective and industrially feasible process for the preparation of (+) Clopidogrel bisulphate. The present invention further discloses a novel method of precipitation of (+) Clopidogrel bisulphate Form I directly from solvent mix of methanol and acetone in presence of sulfuric acid at a temperature of 25-40° C.