Studies toward the Total Synthesis of Sorangiolides and Their Analogues. A Convergent Stereoselective Synthesis of the Macrocyclic Lactone Precursors
作者:Sanjib Das、Sunny Abraham、Subhash C. Sinha
DOI:10.1021/ol070517g
日期:2007.6.1
key steps used in the synthesis include the sp3-hybridized carbon-carbon Fu cross coupling, the stereoselective Evans' aldol reaction with 1,5-anti induction, the 1,3-diastereoselective syn reduction of a beta-hydroxyketone intermediate, and Mukaiyama macrolactonization reactions.
描述了作为天然产物的直接前体索兰吉利内酯A和B的直接保护的18-元大环内酯的立体选择性合成。合成中使用的关键步骤包括sp3-杂化的碳-碳Fu交叉偶联,具有1,5-抗诱导作用的立体选择性Evans醛醇缩合反应,β-羟基酮中间体的1,3-非对映选择性syn还原和Mukaiyama大内酯化反应。