Discovery of a Dimeric Zinc Complex and Five Cyclopentenone Derivatives from the Sponge-Associated Fungus Aspergillus ochraceopetaliformis

文献类型： 外文期刊

第一作者： Guo, Cui

作者： Guo, Cui;Pang, Xiaoyan;Lin, Xiuping;Liao, Shengrong;Yang, Bin;Zhou, Xuefeng;Wang, Junfeng;Liu, Yonghong;Guo, Cui;Pang, Xiaoyan;Lin, Xiuping;Liao, Shengrong;Yang, Bin;Zhou, Xuefeng;Wang, Junfeng;Liu, Yonghong;Guo, Cui;Pang, Xiaoyan;Lin, Xiuping;Liao, Shengrong;Yang, Bin;Zhou, Xuefeng;Wang, Junfeng;Liu, Yonghong;Guo, Cui;Liu, Yonghong;Guo, Cui;Pang, Xiaoyan;Lin, Xiuping;Liao, Shengrong;Yang, Bin;Zhou, Xuefeng;Wang, Junfeng;Liu, Yonghong;Wang, Pei;Lin, Xiuping;Liao, Shengrong;Yang, Bin;Zhou, Xuefeng;Wang, Junfeng;Liu, Yonghong

作者机构：

期刊名称：ACS OMEGA （ 影响因子：2.87； 五年影响因子：2.905 ）

ISSN： 2470-1343

年卷期： 2021 年 6 卷 13 期

页码：

收录情况： SCI

摘要： In devotion to investigating structurally novel and biologically active marine natural products, a dimer of a zinc complex, dizinchydroxyneoaspergillin (1), aspernones A-E (2-6), five cyclopentenone derivatives together with known polyketides (7-10), and neoaspergillic acid analogues (11-14) were isolated from the sponge-associated fungus Aspergillus ochraceopetaliformis SCSIO 41018. Their structures were elucidated on the basis of spectroscopic analysis, electronic circular dichroism (ECD) analysis, and X-ray diffraction. Dizinchydroxyneoaspergillin (1) displayed significant bactericide effects toward methicillin-resistant Staphyloccocus aureus, Staphyloccocus aureus, Enterococcus faecalis, Acinetobacter baumannii, and Klebsiella pneumonia with MIC values of 0.45-7.8 mu g/mL and moderate in vitro cytotoxic activities against the K562, BEL-7402, and SGC-7901 cell lines with IC50 values of 12.88 +/- 0.14, 15.83 +/- 0.23, and 15.08 +/- 0.62 mu M, respectively. This is the first time to report the dimer of the zinc complex of hydroxyneoaspergillic acid conjunction at Zn-N-4 by a coordination bond. Additionally, compound 1 displayed significant antibacterial and cytotoxic activities, which would be a promising drug lead and could attract much attention from both chemists and pharmacists.

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