Enantioselective Synthesis of the ABC-Tricyclic Core of Phomactin A by a γ-Hydroxylation Strategy
作者:Guangyan Du、Wenli Bao、Junrong Huang、Shuangping Huang、Hong Yue、Wei Yang、Lizhi Zhu、Zhenhao Liang、Chi-Sing Lee
DOI:10.1021/acs.orglett.5b00586
日期:2015.5.1
An enantioselective synthesis of the ABC-tricyclic furanochroman core of phomactin A has been accomplished by a gamma-hydroxylation approach. The C ring was established by gamma-hydroxylation of an a-enone. The regioselectivity was optimized by using a strong base with an oxophilic cation (t-BuLi) and a bulky oxygen donor (Davis reagent), which afforded the gamma-hydroxylation product selectively in 63% yield.