花色曲霉
吡喃酮
杂色曲霉素
红树林
代谢物
立体化学
赫拉
真菌
二维核磁共振波谱
化学
寄生曲霉
曲霉
生物
植物
生物化学
体外
真菌毒素
生态学
作者
Marwa Elsbaey,Chiaki Tanaka,Tomofumi Miyamoto
标识
DOI:10.1080/14786419.2020.1803309
摘要
A new α-pyrone derivative, with a rare substitution pattern, was isolated from the solid rice media of the fungal endophyte Aspergillus versicolor associated with the fruit of the mangrove Avicennia marina. It was named allantopyrone E, after allantopyrones C and D. The aforementioned three are the only diaryl-substituted α-pyrones to be reported from nature. The unique structure was elucidated based on one- and two dimensional NMR data as well as high resolution mass spectroscopy. A biosynthetic scheme was proposed for the new compound. Furthermore, allantopyrone E showed cytotoxic effect on HeLa cells with IC50= 50.97 μM.
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