作者:Mira M. Hinman、Clayton H. Heathcock
DOI:10.1021/jo0106391
日期:2001.11.1
This paper describes our work developing a strategy for the construction of the typical core structure of the Stemona alkaloids. The approach is to control the relative stereochemistry of the groups on the core 1-azabicyclo[5.3.0]decane ring system by a [3,3] sigmatropic rearrangement of an acylimmonium ion followed by selective reduction. After optimization, this reaction sequence afforded the desired
本文介绍了我们的工作,该工作为拟定Stemona生物碱典型核心结构的策略。该方法是通过酰基lim离子的[3,3]σ重排,然后进行选择性还原,控制核心1-氮杂双环[5.3.0]癸烷环系统上基团的相对立体化学。优化后,该反应序列以62%的产率提供了所需的非对映异构体。进一步的努力是针对特征性丁内酯取代基的精细化。