Total Synthesis of the Proposed Structure of LL15G256γ
作者:Zhengshuang Xu、Tao Ye、Shuo Li、Shuo Liang
DOI:10.1055/s-2008-1042759
日期:——
The first total synthesis of a molecule possessing the stereochemistry proposed for LL15G256γ is described. The structure synthesized appears to be different from that of the marine natural product.
Cell Wall Active Antifungal Compounds Produced by the Marine Fungus Hypoxylon oceanicum LL-15G256. II. Isolation and Structure Determination.
作者:GERHARD SCHLINGMANN、LISA MILNE、DAVID R. WILLIAMS、GUY T. CARTER
DOI:10.7164/antibiotics.51.303
日期:——
Fermentations of the marine fungus Hypoxylon oceanicum (LL-15G256) were found to have potent antifungal activity. Isolation and purification of the antifungal agents provided two classes of compounds, macrocyclic polylactones and the lipodepsipeptides 15G256γ (1), 15G256δ (2) and 15G256ε (3). The isolation and structure elucidation of the lipodepsipeptides, all containing D-glutamate, L-serine, and the rare amino acid β-ketotryptohan, are described in this paper.