AN IMPROVED PROCESS FOR THE PREPARATION OF PURE EPROSARTANAND ITS PHARMACEUTICAL ACCEPTABLE SALTS

摘要

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.