METHOD OF SYNTHESIZING BEPOTASTINE OR BENZENESULFONIC ACID SALT THEREOF AND INTERMEDIATES USED THEREIN
申请人:EVERLIGHT USA, INC.
公开号:US20140046068A1
公开(公告)日:2014-02-13
The present invention relates to a novel method of synthesizing bepotastine or its benzenesulfonic acid salt and novel intermediates used therein. The present invention uses L-α-hydroxy acid for chiral resolution to form an L-α-hydroxy acid salt of a compound represented by the following formula (VII-1), so as to synthesize bepotastine or its benzenesulfonic acid salt in high optical purity.
本发明涉及一种合成贝泼替丁或其苯磺酸盐的新方法以及其中使用的新中间体。本发明利用L-α-羟基酸进行手性分离,形成由以下式(VII-1)所代表的化合物的L-α-羟基酸盐,从而在高光学纯度下合成贝泼替丁或其苯磺酸盐。