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.
本文披露了一种成本效益高且在工业上可行的过程,用于制备(+)
氯吡格雷双
硫酸盐。本发明进一步披露了一种新颖的方法,通过在存在
硫酸的条件下,在25-40°C的温度下,直接从
甲醇和
丙酮的溶剂混合物中沉淀出(+)
氯吡格雷双
硫酸盐I形态。