METHOD FOR PREPARING LAMORTRIGINE AND ITS INTERMEDIATE 2,3-DICHLOROBENZOYL CHLORIDE
申请人:Van Deynse Dirk
公开号:US20090312544A1
公开(公告)日:2009-12-17
A method for preparing 3,5-diamino-6-(2,3-dichlorophenyl)-1,2,4-triazine, commonly known as lamotrigine, is disclosed. A method of preparing the intermediate, 2,3-dichlorobenzoyl chloride, by photochlorination of 2,3-dichlorobenzotrichloride followed by hydrolysis is also disclosed. The intermediate may then be used in the preparation of lamotrigine.
本发明公开了制备3,5-二氨基-6-(2,3-二氯苯基)-1,2,4-三嗪,通常称为拉莫三嗪的方法。本发明还公开了通过2,3-二氯苯基三氯甲烷的光氯化后水解制备中间体2,3-二氯苯甲酰氯的方法。该中间体随后可用于制备拉莫三嗪。