作者:Michael T. Crimmins、Mariam Shamszad、Anita E. Mattson
DOI:10.1021/ol1008203
日期:2010.6.4
Construction of the AB-ring and E-ring cyclic ether fragments was achieved through asymmetric alkylation/ring-closingmetathesis strategies. A Horner−Wadsworth−Emmons olefination was used in a key bond-forming step to couple the advanced cyclic fragments and enable rapid access to the AB-E ringsystem.
报告了向高度收敛、不对称合成 brevenal 的进展。AB 环和 E 环环醚片段的构建是通过不对称烷基化/闭环复分解策略实现的。Horner-Wadsworth-Emmons 烯化用于关键的键形成步骤,以耦合高级环状片段并能够快速进入 AB-E 环系统。