Synthetic Studies toward the Total Synthesis of Chlorahololide A
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 totalsynthesis 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.