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Histone Deacetylation Modifier Induced One New Resorcylic Acid Lactone 7′(Z)-zeaenol from the Zoanthid-Derived Fungus Cochliobolus lunatus

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Abstract

Chemical epigenetic manipulation was applied to the zoanthid-derived fungus Cochliobolus lunatus (TA26-46) with a histone deacetylation modifier (100 µmol L−1 nicotinamide), resulting in the isolation of a new 14-membered resorcylic acid lactone named 7′(Z)-zeaenol (1), together with six known analogues (2–7) from the treated broth. The planar structure of 1 was determined by comprehensive NMR spectroscopy and HRESIMS data. The absolute configuration of 1 was elucidated by ECD spectrum, 13C NMR shift calculations, and on the basis of biogenetic considerations. Compound 5 exhibited cytotoxic activity against the human tumor cell lines A549, HCT-116, HT-29, Hela, MCF-7, and K562 with the IC50 values ranging from 2.54 to 7.44 µmol L−1.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 81673350, 81703411, 417 76156), the National Science and Technology Major Project for Significant New Drugs Development, China (No. 2018ZX09735-004), the Fundamental Research Funds for the Central Universities of China (No. 201962002), and the Taishan Scholars Program, China.

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Correspondence to Min Chen or Changyun Wang.

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Zhang, Z., Wang, J., Cao, F. et al. Histone Deacetylation Modifier Induced One New Resorcylic Acid Lactone 7′(Z)-zeaenol from the Zoanthid-Derived Fungus Cochliobolus lunatus. J. Ocean Univ. China 22, 198–204 (2023). https://doi.org/10.1007/s11802-020-4489-y

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  • DOI: https://doi.org/10.1007/s11802-020-4489-y

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