Total Syntheses of (±)-Omphadiol and (±)-Pyxidatol C through a <i>Cis</i>-Fused 5,7-Carbocyclic Common Intermediate
作者:Lili Zhou、Yanmin Yao、Wenbo Xu、Guangxin Liang
DOI:10.1021/jo5006125
日期:2014.6.6
Total syntheses of omphadiol and pyxidatol C, two isomeric africanane sesquiterpenes sharing identical 5-7-3 tricyclic carbon skeletons yet containing distinct oxidation patterns, are reported. The trans-fused 5,7-carbocycles in the terpenoids characterized by specific oxidation patterns were derived from a readily available cis-fused 5,7-carbocyclic common intermediate.