申请人:Lonza Ltd.
公开号:US04965359A1
公开(公告)日:1990-10-23
A process for the production of 4,5,6,7-tetrahydrothieno-[3,2-c]-pyridines of the formula: ##STR1## Thus, in the case of a 4-oxo-3-piperidine-3-carboxylic acid ester of the formula: ##STR2## an allyl group is introduced in the 3 position, the ester function in the 3 position is removed, the resultant compound of the formula: ##STR3## is ionized, reduced to the corresponding aldehyde of the formula: ##STR4## and with H.sub.2 S/HCl in the presence of a metal halide is cyclized to the end product. The synthesized compounds have antithrombotic action.
一种用于生产4,5,6,7-四氢噻吩-[3,2-c]-吡啶的方法,其化学式为:##STR1## 因此,在化学式为4-氧代-3-哌啶-3-羧酸酯的情况下:##STR2## 在3位引入一个烯丙基基团,去除3位的酯功能基团,得到的化合物的化学式为:##STR3## 被电离,还原为相应的醛的化学式:##STR4## 并在金属卤化物存在下与H.sub.2 S/HCl环化成最终产物。合成的化合物具有抗血栓作用。