Bioactive Polyketides and Benzene Derivatives from Two Mangrove Sediment-Derived Fungi in the Beibu Gulf

文献类型： 外文期刊

第一作者： Peng, Bo

作者： Peng, Bo;Cai, Jian;Li, Xinlong;Yang, Bin;Chen, Chunmei;Zhou, Xuefeng;Xiao, Zimin;Tao, Huaming;Liu, Manli;Fang, Wei;Huang, Yi-You

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关键词： mangrove sediment-derived fungi; polyketide; stachylines; biological activity

期刊名称：MARINE DRUGS （ 影响因子：5.4； 五年影响因子：5.5 ）

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年卷期： 2023 年 21 卷 6 期

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收录情况： SCI

摘要： To discover bioactive natural products from mangrove sediment-derived microbes, a chemical investigation of the two Beibu Gulf-derived fungi strains, Talaromyces sp. SCSIO 41050 and Penicillium sp. SCSIO 41411, led to the isolation of 23 natural products. Five of them were identified as new ones, including two polyketide derivatives with unusual acid anhydride moieties named cordyanhydride A ethyl ester (1) and maleicanhydridane (4), and three hydroxyphenylacetic acid derivatives named stachylines H-J (10-12). Their structures were determined by detailed nuclear magnetic resonance (NMR) and mass spectroscopic (MS) analyses, while the absolute configurations were established by theoretical electronic circular dichroism (ECD) calculation. A variety of bioactive screens revealed three polyketide derivatives (1-3) with obvious antifungal activities, and 4 displayed moderate cytotoxicity against cell lines A549 and WPMY-1. Compounds 1 and 6 at 10 & mu;M exhibited obvious inhibition against phosphodiesterase 4 (PDE4) with inhibitory ratios of 49.7% and 39.6%, respectively, while 5, 10, and 11 showed the potential of inhibiting acetylcholinesterase (AChE) by an enzyme activity test, as well as in silico docking analysis.

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