Enantioselective Synthesis of Four Natural Homoisoflavonoids
作者:Yan-Chao Yu、Shijun Zhu、Xiao-Wei Lu、Yikang Wu、Bo Liu
DOI:10.1002/ejoc.201500579
日期:2015.8
Four naturally occurring sappanin-type homoisoflavonoids were synthesized in optically active form with the stereogenic centers of predefined absolute configuration constructed by using Evans' asymmetric aldol reaction. Analysis of the synthesized compounds not only confirmed the previously assigned planar structures but also was used to determine the absolute configurations of the natural products