large variety of biological activities and unique structural features. An efficient and highly convergent total synthesis of Leustroducsin B was achieved in 17 longest linear and 39 total steps by disconnecting the molecule into three fragments having similar levels of complexity. These pieces were connected via a highly efficient chelate-controlled addition of a vinyl zincate to an α-hydroxy ketone and
Leustroducsin B 具有多种
生物活性和独特的结构特征。Leustroducsin B 的高效且高度收敛的全合成通过 17 个最长的线性步骤和 39 个总步骤实现,方法是将分子断开为具有相似复杂度
水平的三个片段。这些片段通过高效螯合控制将
乙烯基锌酸盐添加到 α-羟基酮和
硅介导的交叉偶联来连接。中央和西部片段的立体
化学通过
锌-
苯酚催化的羟醛反应和
钯催化的不对称烯丙基烷基化以高产率和优异的催化进行设置。