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  • Title: Antifungal polyketides from the marine-derived fungus Nigrospora sp. MG36-1.
    Author: Lan D, Ge Y, Zhou C, Li S, Wang J, Wu X, Zhang X, Lei H, Wu B.
    Journal: Fitoterapia; 2023 Mar; 165():105406. PubMed ID: 36572117.
    Abstract:
    Three new polyketides, a griseofulvin derivative 1, a hydroanthraquinone derivative 8 and a pyranolactone derivative 10, together with eight known compounds (2-7, 9 and 11), were isolated from the marine-derived fungus Nigrospora sp. MG36-1. The structures of the three new compounds were unambiguously determined by nuclear magnetic resonance (NMR), mass spectrometry, 13C NMR calculation in combination with DP4+ and ECD calculations. The antitumor, antibacterial and antifungal activities of the compounds 1-9 were evaluated in vitro. Compound 1 showed antibacterial activity against Acinetobacter baumannii with MIC 42.5 μg/mL. Compounds 1 and 8 exhibited antifungal activity against Candida albicans with MICs 21.5 μg/mL and 17.5 μg/mL, respectively.
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