申请人:Cipla Limited
公开号:US07799928B2
公开(公告)日:2010-09-21
The present invention is concerned with a process for the preparation of 2n-butyl-4-spirocyclopentane-1-[(2′-(tetrazol-5-yl)biphenyl-4-yl)methyl]-2-imidazolin-5-one hydrochloride, irbesartan hydrochloride, novel hydrated and anhydrous crystalline forms thereof, amorphous irbesartan hydrochloride, formulations containing the same, therapeutic uses thereof and methods of treatment employing the same. The process of the present invention is a one-pot process which comprises reacting intermediate compounds 2n-butyl-1,3-diazaspiro[4,4]non-1-en-4-one and 5-(4′-bromomethyl-biphenyl-2-yl)-1-trityl-1H-tetrazole.
本发明涉及一种制备2n-丁基-4-螺环戊烷-1-[(2′-(四唑-5-基)联苯-4-基)甲基]-2-咪唑啉-5-酮盐酸盐,厄贝沙坦盐酸盐,其新的水合和无水晶体形式,无定形厄贝沙坦盐酸盐,含有它们的配方,以及使用它们的治疗用途和治疗方法。本发明的方法是一种单锅法,包括反应中间体化合物2n-丁基-1,3-二氮杂螺[4,4]壬-1-烯-4-酮和5-(4′-溴甲基-联苯-2-基)-1-三苄基-1H-四唑。