[EN] A PROCESS FOR SYNTHESIS OF CHIRAL 3-SUBSTITUTED TETRAHYDROQUINOLINE DERIVATIVES<br/>[FR] PROCESSUS DE SYNTHÈSE DE DÉRIVÉS TÉTRAHYDROQUINOLINE CHIRAUX 3-SUBSTITUÉS
申请人:COUNCIL SCIENT IND RES
公开号:WO2013140419A1
公开(公告)日:2013-09-26
The present invention relates to novel and concise process for the construction of chiral 3-substituted tetrahydroquinoline derivatives based on proline catalyzed asymmetric α-functionalization of aldehyde, followed by in situ reductive cyclization of nitro group under catalytic hydrogenation condition with high optical purities. Further the invention relates to conversion of derived chiral 3-substituted tetrahydroquinoline derivatives into therapeutic agents namely (-)-sumanirole (96% ee) and 1-[(S)-3-(dimethylamino)-3,4-dihydro-6,7-dimethoxy-quinolin-1(2H)-yl]propanone[(S)-903] (92% ee).
本发明涉及一种新颖简洁的过程,用于构建基于脯氨酸催化的不对称α-醛功能化的手性3-取代四氢喹啉衍生物,随后在高光学纯度下在催化氢化条件下进行硝基基团的原位还原环化。此外,该发明涉及将衍生的手性3-取代四氢喹啉衍生物转化为治疗剂,即(-)-苏马尼罗尔(96% ee)和1-[(S)-3-(二甲基氨基)-3,4-二產-6,7-二甲氧基喹啉-1(2H)-基]丙酮[(S)-903](92% ee)。