Three new polyketides from the marine sponge-derived fungus Trichoderma sp. SCSIO41004

Xiaoyan Pang,Xiuping Lin,Yongqi Tian,Rui Liang,Junfeng Wang,Bin Yang,Xuefeng Zhou,Kumaravel Kaliyaperumal,Xiaowei Luo,Zheng-chao Tu,Yonghong Liu

Published 2018 in Natural Product Research

ABSTRACT

Abstract Three new polyketides named trichbenzoisochromen A (1), 5,7-dihydroxy-3-methyl -2-(2-oxopropyl)naphthalene-1,4-dione (2) and 7-acetyl-1,3,6-trihydroxyanthracene-9,10- dione (3) together with six known compounds (4–9) were isolated from a sponge-derived fungus Trichoderma sp. SCSIO41004. The structures of three new polyketides (1–3) were determined by the extensive spectroscopic analysis, including 1D, 2D NMR and HRESIMS data. The absolute configuration of compound 1 was confirmed by the specific optical rotation value and CD spectra analyses. Compound 4 exhibited significant inhibitory activity against EV71 with the IC50 value of 25.7 μM.

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