Studies directed towards the synthesis of stevastelins—a macrolactonization approach to stevastelin B
作者:Tushar K Chakraborty、Subhash Ghosh、Shantanu Dutta
DOI:10.1016/s0040-4039(01)00893-0
日期:2001.7
A synthetic approach towards the cyclic depsipeptide immunosuppressant stevastelin B, based on the stereoselective synthesis of its propionate-derived fatty acid segment 6 that was coupled with the tripeptide 7 leading to the advanced stage acyclic intermediate 5, is described. In spite of our best efforts, the crucial macrolactonization reaction was not successful.
描述了一种基于环状丙肽免疫抑制剂stevastelin B的合成方法,该方法基于其丙酸酯衍生的脂肪酸片段6的立体选择性合成,该片段与三肽7偶联,导致晚期无环中间体5。尽管我们尽了最大努力,但关键的大内酯化反应仍未成功。