Structurally diverse new alkaloids from Palauan collections of the apratoxin-producing marine cyanobacterium Lyngbya sp.
作者:Hendrik Luesch、Wesley Y Yoshida、Richard E Moore、Valerie J Paul
DOI:10.1016/s0040-4020(02)00895-5
日期:2002.9
Various collections of the apratoxin-producing marine cyanobacterium Lyngbya sp. from Palau have afforded several new nitrogenous metabolites. Lyngbyabellin C is a dichlorinated, thiazole hydroxy acid-containing, cytotoxic macrolide that is related to other lyngbyabellins, to dolabellin, and to hectochlorin. Its selective decomposition tendency to form homohydroxydolabellin suggests that the sea hare
产生a毒素的海洋蓝细菌Lyngbya sp。的各种集合。来自帕劳的葡萄已经提供了几种新的含氮代谢产物。Lyngbyabellin C是一种含二氯的噻唑羟基酸的细胞毒性大环内酯类,与其他lyngbyabellins,dolabellin和hectochlorin有关。其选择性分解趋势形成高羟基羟萘青霉素表明,海兔分离物羟萘青霉素可能是分离产物。除了已知的lyngbyapeptin A,还分离了两个新的相关修饰四肽lyngbyapeptins B和C。此外,发现了一种新的细胞毒性N-酰基吡咯烷酮,称为帕劳酰亚胺。这些代谢物的结构阐明涉及NMR光谱学的广泛应用。