Tang Yu, Cole Kevin P, Buchanan Grant S, Li Gang, Hsung Richard P
Division of Pharmaceutical Sciences and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53705, USA.
Org Lett. 2009 Apr 2;11(7):1591-4. doi: 10.1021/ol900237e.
A total synthesis of (+/-)-phomactin A is described to highlight the final completion of a complex natural product target that had commenced with an intramolecular oxa-[3 + 3] annulation strategy in the construction of the ABD-tricycle. These efforts reveal structural intricacies of this ABD-tricycle with an illustrative example being the conformational analysis that was ultimately critical for the C5a-homolgation.
本文描述了(±)-光活菌素A的全合成,以此突出一个复杂天然产物目标的最终完成,该目标始于构建ABD三环时的分子内氧杂-[3 + 3]环化策略。这些研究揭示了该ABD三环的结构复杂性,一个具有说明性的例子是构象分析,它最终对C5a同系化至关重要。