Stereoselective synthesis of the C1–C12 segment of iriomoteolide-1a: a very potent macrolide antitumor agent
作者:Arun K. Ghosh、Hao Yuan
DOI:10.1016/j.tetlet.2009.01.043
日期:2009.4
kinetic resolution of a β-hydroxy amide, a Pd-catalyzed cross-coupling to construct a substituted allylsilane, a highly and stereoselective conjugate addition of lithium dimethylcopper to an α,β-acetylenic ester and an elaboration of the C6–C7 trans-olefin geometry by a Julia-Kocienski olefination.
已经完成了强效细胞毒性大环内酯(iriomoteolide 1a)的 C 1 -C 12片段的立体选择性合成。关键步骤包括 β-羟基酰胺的酶动力学拆分、Pd 催化的交叉偶联以构建取代的烯丙基硅烷、二甲基铜锂与 α,β-炔酸酯的高度立体选择性共轭加成以及通过 Julia-Kocienski 烯化反应得到C 6 –C 7反式烯烃几何结构。