申请人:Apotex Pharmachem Inc.
公开号:US07060831B2
公开(公告)日:2006-06-13
A process for the preparation of tetrahydrothieno[3,2-c]pyridine compound of formula 6:
or their pharmaceutically acceptable salts, wherein the meaning of X is carboxyl, alkoxycarbonyl, aryloxycarbonyl, or carbamoyl of formula
wherein R1 and R2 can be individually or simultaneously hydrogen, alkyl or part of a heterocyclic structure; Z can be hydrogen, halogen, alkyl, aryl, aryloxy or alkoxy group, the process comprising conducting a dehydroxylation reaction on the compound of formula 5 in order to obtain a compound of formula 6, wherein said dehydroxylation reaction is effected by iodosilane represented by the formula Si(R3)3I, wherein R3 selected from an alkyl, alkenyl, alkynyl, aromatic group, or combinations of thereof
一种制备式6的四氢噻吩[3,2-c]吡啶化合物或其药学上可接受的盐的方法,其中X的意义为式中的羧基、烷氧基羰基、芳基氧基羰基或式中的氨基甲酰基,其中R1和R2可以分别或同时为氢、烷基或杂环结构的一部分;Z可以是氢、卤素、烷基、芳基、芳氧基或烷氧基基团。该方法包括对式5的化合物进行去羟基化反应,以获得式6的化合物,其中所述去羟基化反应通过具有以下公式的碘硅烷Si(R3)3I进行:其中R3选自烷基、烯基、炔基、芳香基或其组合。