Two novel cyclic depsipeptides Xenematides F and G from the entomopathogenic bacterium Xenorhabdus budapestensis
作者:Xuedong Xi、Xingzhong Lu、Xiaodong Zhang、Yuhui Bi、Xiaochun Li、Zhiguo Yu
DOI:10.1038/s41429-019-0203-y
日期:2019.10
xenematides F and G (1, 2), were isolated from entomopathogenic Xenorhabdus budapestensis SN84 along with a known compound xenematide B. The structures of the two new molecules were elucidated using NMR, MS and Marfey's method. The xenematide G (2) contains α-aminoheptanoic acid, a non-protein amino acid that is rarely found in secondary metabolites from entomopathogenic bacteria. Xenematides F and G were
从昆虫病原体Xenorhabdus budapestensis SN84中分离了两个新的短肽肽Xenematides F和G(1,2)以及已知的化合物XenematideB。使用NMR,MS和Marfey方法阐明了这两个新分子的结构。Xenematide G(2)含有α-氨基庚酸,这是一种非蛋白质氨基酸,在昆虫病原菌的次级代谢产物中很少见。测试了Xenematides F和G的抗菌活性。Xenematide G(2)表现出中等的抗菌活性。