The present invention relates to novel and concise process for the construction of chiral 3-substituted tetrahyroquinoline 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-(di-methylamino)-3,4-dihydro-6,7-dimethoxy-quinolin-1(2H)-yl]propanone[(S)-903] (92% ee).
该发明涉及一种新颖简洁的过程,用于构建基于脯
氨酸催化的醛的手性3-取代
四氢喹啉衍
生物的立体选择性α-官能化,随后在高光学纯度的催化氢化条件下通过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(−)-sumanirole(96% ee)和1-[(S)-3-(
二甲氨基)-3,4-二產二甲氧基
喹啉-1(2H)-基]
丙酮[(S)-903](92% ee)。