Stereochemical assignment of the fungal metabolite xestodecalactone A by total synthesis
作者:Gerhard Bringmann、Gerhard Lang、Manuela Michel、Markus Heubes
DOI:10.1016/j.tetlet.2004.02.005
日期:2004.3
The first synthesis of the macrocyclic natural product xestodecalactone A, a metabolite of a sponge-derived fungus, is described. By the use of methyl 5-hydroxyhexanoate in its R- or S-configured form, or as its racemate as the precursors, both enantiomers of xestodecalactone A as well as the racemic compound were obtained. Comparison of these synthetic products with the natural product by circular
描述了大环天然产物xestodecalactone A(海绵衍生真菌的代谢产物)的首次合成。通过使用R-或S-构型的形式或作为其外消旋体的5-羟基己酸甲酯作为前体,获得了异十二烷内酯A的对映异构体以及外消旋化合物。这些合成产物与天然产物通过圆二色性(CD)光谱法和通过HPLC在手性相上的比较揭示了天然产物具有(R)-构型。