作者:Stephen G. Davies、Ai M. Fletcher、Emma M. Foster、Ian T. T. Houlsby、Paul M. Roberts、Thomas M. Schofield、James E. Thomson
DOI:10.1039/c4cc02135e
日期:——
The asymmetric synthesis of (â)-lupinine was achieved in 8 steps, 15% overall yield and >99â:â1 dr from commercially available starting materials. The strategy used for the construction of the quinolizidine scaffold involved reaction of an enantiopure tertiary dibenzylamine via two sequential ring-closures which both occurred with concomitant N-debenzylation.
(â)-羽扇豆碱的不对称合成共分8步完成,总收率为15%,从市售的起始原料中获得了>99â:â1 dr。构建喹嗪类骨架的策略涉及通过两个连续的环闭合反应,同时进行N-脱苄基化反应,生成对映纯的三苯甲胺。