文献类型： 外文期刊
第一作者： Yuan, Chao
作者： Yuan, Chao;Wang, Zhunian;Guo, Yuhua;Wang, Ke;Li, Gang;Li, Longfei;Zhu, Huajie
作者机构：
关键词： muyocopron; endophytes; azaphilones; ECD; VCD
期刊名称：FRONTIERS IN CHEMISTRY （ 影响因子：5.221； 五年影响因子：5.385 ）
ISSN： 2296-2646
年卷期： 2021 年 9 卷
页码：
收录情况： SCI
摘要： Two known azaphilone derivatives, 4,6-dimethylcurvulinic acid (1) and austdiol (2), and their novel heterotrimer, muyophilone A (3), were isolated and identified from an endophytic fungus, Muyocopron laterale 0307-2. Their structures and stereochemistry were established by extensive spectroscopic analyses including HRMS, NMR spectroscopy, electronic circular dichroism (ECD) and vibrational circular dichroism (VCD) spectroscopic methods, as well as single crystal X-ray diffraction. In the structure of 3, two compound 2-derived azaphilone units were connected through an unprecedented five-membered carbon bridge which was proposed to be originated from compound 1. Compound 3 represents the first example of azaphilone heterotrimers.
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