Total Synthesis of Asimicin via Highly Stereoselective [3 + 2] Annulation Reactions of Substituted Allylsilanes
作者:Jennifer M. Tinsley、William R. Roush
DOI:10.1021/ja051986l
日期:2005.8.1
A highly stereoselective total synthesis of (+)-asimicin (1) is reported. The synthesis features two chelate-controlled [3 + 2] annulation reactions-one of which (e.g., 2 + 3) constitutes a key, convergent fragment assembly step-that establish all of the stereochemistry of the bis-tetrahydrofuran unit of the natural product.
报道了 (+)-asimicin (1) 的高度立体选择性全合成。该合成具有两个螯合物控制的 [3 + 2] 环化反应 - 其中一个(例如,2 + 3)构成了关键的会聚片段组装步骤 - 建立了天然产物双四氢呋喃单元的所有立体化学.