Stereoselective Total Synthesis of (-)-Isocladospolide B and Cladospolide B and C
作者:J. Yadav、S. Mandal
DOI:10.1055/s-0031-1289868
日期:2011.12
The enantioselective synthesis of bioactive butenolides isocladospolide B, cladospolide B, and cladospolide-C has been achieved from (S)-propylene oxide. Of the three stereogenic centers, the C-4/C-5 vic-diol was obtained using diastereo- and enantioselective Brown hydroxycrotylation, while the C-11 stereocenter was created by Jacobsen hydrolytic kinetic resolution.
已通过(S)-丙烯氧化物实现了生物活性丁烯内酯异克拉多斯波利德B、克拉多斯波利德B和克拉多斯波利德C的对映选择性合成。在三个立体中心中,C-4/C-5邻二醇是通过二对映体和对映选择性的布朗羟基克罗提化法获得的,而C-11立体中心则是通过雅各布森水解动力学分辨法构建的。