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A Novel Azaphilone Muyophilone A From the Endophytic Fungus Muyocopron laterale 0307-2

文献类型： 外文期刊

作者： Yuan, Chao 1 ; Guo, Yuhua 2 ; Wang, Ke 3 ; Wang, Zhunian 1 ; Li, Longfei 4 ; Zhu, Huajie 4 ; Li, Gang 3 ;

作者机构： 1.Chinese Acad Trop Agr Sci CATAS, Trop Crops Genet Resources Inst, Haikou, Hainan, Peoples R China

2.Chinese Acad Trop Agr Sci CATAS, Haikou Expt Stn, Haikou, Hainan, Peoples R China

3.Qingdao Univ, Sch Pharm, Dept Nat Med Chem & Pharmacognosy, Qingdao, Peoples R China

4.Hebei Univ, Coll Pharm, Baoding, Peoples R China

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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