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KMID : 0620720190250030228
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Natural Product Sciences
2019 Volume.25 No. 3 p.228 ~ p.232
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Xylaroisopimaranin A, a New Isopimarane Derivative from an Endophytic Fungus Xylaralyce sp
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Bao Shang-Song
Liu Hui-Hui
Zhang Xue-Qing
Liu Cheng-Xiong
Li Xiao-Cong
Guo Zhi-Yong
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Abstract
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Five secondary metabolites, including a new isopimarane derivative xylaroisopimaranin A (1), were isolated from the endophytic fungus Xylaralyce sp. (HM-1), and their structures were elucidated by 1D, 2D NMR, MS and CD spectra. Their bioactivities were performed to antibacterial, Hep G2 cells cytotoxicity and brine shrimp inhibition. The biological evaluation results showed that the xylaroisopimaranin A (1), xylabisboein B (2), griseofulvin (3) , 5-methylmellein (4) and mellein-5-carboxlic acid (5) displayed no significant Hep G2 cells cytotoxicity and antibacterial acitivity, but they inhibited the brine shrimp with IC50 from 0.5 to 25 μmol/mL.
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KEYWORD
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Endophytic fungus, Xylaralyce sp., Structural elucidation, Brine shrimp inhibition
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