作者:Gang Zhao、Shan Qian
DOI:10.1055/s-0030-1259677
日期:2011.3
The highly stereoselective synthesis of core framework 4, a pivotal intermediate for the total synthesis of chlorahololide A, is reported. The approach features t-BuCu-mediated stereoselective reduction of α,β-unsaturated diketone 8, Wharton transposition, Simmons―Smith cyclopropanation and cascade enol lactonization.
报道了核心框架 4 的高度立体选择性合成,核心框架 4 是氯全内酯 A 全合成的关键中间体。该方法具有 t-BuCu 介导的 α,β-不饱和二酮 8 立体选择性还原、沃顿转座、西蒙斯-史密斯环丙烷化和级联烯醇内酯化。