Asymmetric synthesis of functionalized benzo[a]quinolizine derivatives via a diastereoselective N-acyliminium ion cyclization
作者:Yong Sup Lee、Soo Sung Kang、Jung Hoon Choi、Hokoon Park
DOI:10.1016/s0040-4020(97)00070-7
日期:1997.3
A chiral synthesis of functionalized benzo[a]quinolizine derivative (5) has been accomplished starting from a chiral lactone 7. The key feature is the efficient control of the stereochemistry of ring juncture of the functionalized benzo[a]quinolizine derivative 5 by the N-acyliminiumioncyclization of chiral lactam 11b.
从手性内酯7开始,已经完成了功能化的苯并[ a ]喹啉嗪衍生物(5)的手性合成。关键特征是通过手性内酰胺11b的N-酰基亚胺离子环化有效控制官能化的苯并[ a ]喹啉嗪衍生物5的环连接处的立体化学。