The invention provides a method for preparing candesartan cilexetil and related tetrazolyl compounds. More particularly, the invention relates to the preparation of candesartan cilexetil and related tetrazolyl compounds and includes a method of removing a protective group (e.g., triphenylmethane (trityl) protecting group) from an N-protected tetrazolyl compound using a Lewis acid in an inert solvent and in the presence of an alcohol (e.g., reacting an N-protected tetrazolyl compound with ZnCl
2
in the presence of an alcohol).
这项发明提供了一种制备
缬沙坦西
乙酯和相关
噻唑烷基化合物的方法。更具体地,该发明涉及制备
缬沙坦西
乙酯和相关
噻唑烷基化合物的方法,包括利用惰性溶剂和醇的存在下,使用Lewis酸从N-保护的
噻唑烷基化合物中去除保护基(例如三苯
甲烷(三亚甲基)保护基)的方法(例如,在醇的存在下将N-保护的
噻唑烷基化合物与ZnCl2反应)。