Asymmetric Synthesis of (+)-Tanikolide and the β-Methyl-Substituted Analogues of (+)-Tanikolide and (-)-Malyngolide
作者:Robert Doran、Lesley Duggan、Surrendra Singh、Colm D. Duffy、Patrick J. Guiry
DOI:10.1002/ejoc.201101190
日期:2011.12
overall yield of 26.4 % by employing Sharpless asymmetric epoxidation and ZrCl4-catalyzed intramolecular acetalization as the key steps. The novel β-methyl-substituted analogues of (+)-tanikolide and(–)-malyngolide have also been prepared by using the same asymmetric synthetic approach.
以Sharpless不对称环氧化和ZrCl4催化的分子内缩醛化为关键步骤,含δ-内酯的天然产物(+)-tanikolide是一种盐水虾毒素和抗真菌化合物,分九步合成,总产率为26.4%。(+) - tanikolide 和 (-) - malyngolide 的新型 β-甲基取代类似物也已通过使用相同的不对称合成方法制备。