Stereodivergent Total Synthesis of (+)-Aspergillide B and (+)-7-<i>epi</i>-Aspergillide A
作者:Y. Sridhar、P. Srihari
DOI:10.1002/ejoc.201201155
日期:2013.1
The stereoselective total syntheses of (+)-aspergillide B and (+)-7-epi-aspergillide A were achieved. The key reactions include Noyori's asymmetric transfer hydrogenation, an Achmatowicz rearrangement, a Ferrier-type alkynylation, a hydrosilylation–protodesilylation, a CBS (Corey–Bakshi–Shibata) oxazaborolidine reduction, a Yamaguchi macrolactonization, and a Mitsunobu macrolactonization.
实现了(+)-曲霉内酯B和(+)-7-epi-曲霉内酯A的立体选择性全合成。关键反应包括 Noyori 的不对称转移氢化、Achmatowicz 重排、Ferrier 型炔基化、氢化硅烷化-原脱甲硅烷化、CBS(Corey-Bakshi-Shibata)氧杂硼烷还原、Yamaguchi 大内酯化和 Mitsunobu 大内酯化。