The present invention relates to an improved process for preparation of pure Eprosartan and its pharmaceutical acceptable salts comprising the steps of: a) treating the Eprosartan with hydrochloric acid; b) suspending the resulted Eprosartan hydrochloride in water; c) adjusting the pH with base; d) isolating the pure Eprosartan; wherein the purity of the purified Eprosartan is higher than the purity of the starting Eprosartan.
本发明涉及一种改进的制备纯Eprosartan及其药物可接受盐的方法,包括以下步骤:a)用
盐酸处理Eprosartan;b)将所得的Eprosartan盐酸盐悬浮于
水中;c)用碱调节pH值;d)分离纯Eprosartan;其中,纯化后的Eprosartan的纯度高于起始Eprosartan的纯度。