A new compound, named penicillquei C (1), and eight known compounds (2–9), were isolated from the fermentation broth of mangrove-derived fungus Penicillium verruculosum TGM14. The structure of compound 1 was identified by comprehensive analyses of 1D and 2D NMR and HR-ESI-MS spectroscopic data, and calculated electronic circular dichroism (ECD) spectra. Compound 2 was isolated from the genus Penicillium for the first time. Compound 4 exhibited potent antioxidant activity with an IC50 value of 4.7 μM, which is stronger than positive control trolox (IC50 = 13.0 μM). Compound 4 also showed wide antibacterial activities against Staphylococcus aureus, Bacillus cereus, and Escherichia coli, with the same MIC value of 25.0 μg/mL.
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ACKNOWLEDGMENT
This work was supported by the National Natural Science Foundation of China (Nos. 31760093 and 32160108), Hainan Provincial Natural Science Foundation of China (No. 220RC593), Key Research and Development Program of Hainan Province (No. ZDYF2019183).
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Published in Khimiya Prirodnykh Soedinenii, No. 5, September–October, 2022, pp. 687–689.
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Wang, B., Nong, XH., Zeng, WN. et al. Study on Bioactive Secondary Metabolites from the Mangrove-Derived Fungus Penicillium verruculosum TGM14. Chem Nat Compd 58, 812–815 (2022). https://doi.org/10.1007/s10600-022-03804-9
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DOI: https://doi.org/10.1007/s10600-022-03804-9