The Asymmetric Total Synthesis of Cinbotolide: A Revision of the Original Structure
作者:José Manuel Botubol、María Jesús Durán-Peña、Antonio J. Macías-Sánchez、James R Hanson、Isidro G. Collado、Rosario Hernández-Galán
DOI:10.1021/jo501471m
日期:2014.12.5
The structure 3,4-dihydroxy-2,4,6,8-tetramethyldec-8-enolide (1) was assigned to a metabolite of Botrytis cinerea, but the spectra of several synthetic analogues had significant differences from that of 1. Examination of the constituents of a B. cinerea mutant that overproduces polyketides gave sufficient quantities of 1, now named cinbotolide, for chemical transformations. These led to a revised γ-butyrolactone
结构3,4-二羟基-2,4,6,8- tetramethyldec -8- enolide(1)被分配到的代谢物灰霉病,但几个合成类似物的光谱具有从的显著差异1。检查过度产生聚酮化合物的灰质芽孢杆菌突变体的成分,得到足够量的1(现在称为cintotolide)用于化学转化。这些导致了代谢物的γ-丁内酯结构的改变。这种结构已经通过不对称的全合成得到证实,该合成也确立了其绝对构型。