Expeditious Synthesis of Ieodoglucomides A and B from the Marine-Derived Bacterium <i>Bacillus licheniformis</i>
作者:Ananda Rao Podilapu、Madhu Emmadi、Suvarn S. Kulkarni
DOI:10.1002/ejoc.201800209
日期:2018.6.29
The total synthesis of the marine‐derived bacterial glycopeptides ieodoglucomides A and B is reported. The key steps of the synthesis are a glycosyl‐iodide‐mediated β‐stereoselective glycosylation without neighbouring‐group participation, a regioselective acylation, and a Grubbs cross‐metathesis reaction. The synthesis involves 11 steps, with 38–40 % overall yield.
据报道,海洋来源的细菌糖肽即葡糖苷A和B的总合成。合成的关键步骤是没有相邻基团参与的糖基碘化物介导的β-立体选择性糖基化,区域选择性酰化和Grubbs交叉复分解反应。合成过程涉及11个步骤,总产率为38–40%。