作者:Elodie Brun、Véronique Bellosta、Janine Cossy
DOI:10.1021/acs.joc.6b01166
日期:2016.9.16
The synthesis of the carbon skeleton of filipin III, a polyenic macrolactone possessing 11 stereogenic centers, was achieved using a convergent strategy with the longest linear sequence of 19 steps starting from hexanal. Construction of the polyene was realized using two successive Heck couplings as the key steps. Control of the stereogenic centers of the polyol fragment was performed by utilizing
使用会聚策略以最长的线性序列(从己醛开始)为中心的19个步骤,合成了具有11个立体异构中心的多烯型大内酯-菲利普斯III的碳骨架。使用两个连续的Heck偶联作为关键步骤,实现了多烯的构建。物用埃文斯醛醇缩合,1,3-执行的多元醇片段的立体中心的控制顺醛醇缩合,对映和非对映选择性烯丙基化,一个hemiacetalization /氧杂迈克尔序列,和1,3-顺式减少。多元醇与多烯片段使用1,5-耦合反非对映选择性醛醇缩合,随后由1,3-反减少。