Synthesis and Structural Revision of Phomopsin B, a Novel Polyketide Carrying a 10-Membered Cyclic-Ether Ring
作者:Yuko Izuchi、Hiroyuki Koshino、Yayoi Hongo、Nobuhiro Kanomata、Shunya Takahashi
DOI:10.1021/ol2011117
日期:2011.7.1
Total synthesis of the proposed structure 2 for phomopsin B was achieved by using an intramolecular olefin metathesis as a key step. The spectral data, however, did not match with those of the natural product reported. Re-examination of the reported NMR data led to the structural revision of phomopsin B to known dothiorelone A 18. The R configuration of dothiorelone A was determined by total synthesis
通过使用分子内烯烃复分解作为关键步骤,实现了针对视蛋白B的拟议结构2的全合成。然而,光谱数据与报道的天然产物的光谱数据不匹配。重新检查所报告的NMR数据导致将视蛋白B的结构修改为已知的dothiorelone A 18。Dothiorelone A的R构型是通过与手性烯烃19的交叉复分解通过全合成确定的。