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Structurally Diverse Meroterpenoids from a Marine-Derived Aspergillus sp. Fungus
Journal of Natural Products ( IF 4.257 ) Pub Date : 2019-12-23 , DOI: 10.1021/acs.jnatprod.9b00878
Huiling Wen; Xiliang Yang; Qian Liu; Shuangjun Li; Qin Li; Yi Zang; Chunmei Chen; Jianping Wang; Hucheng Zhu; Yonghui Zhang

Three new meroterpenoids, asperaustins A–C (1–3), and seven known analogues (4–10) were isolated from a marine-derived Aspergillus sp. fungus. The structures and absolute configurations of these new compounds were unequivocally determined by extensive spectroscopic analyses and single-crystal X-ray diffraction analyses. Asperaustin A (1) possesses an unusual spiro[4.5]deca-3,6-dien-2-one moiety with a unique 5/6/6/6/5 pentacyclic skeleton. The absolute configurations of austinoneol A (7) and precalidodehydroaustin (9) were determined by single-crystal X-ray diffraction analyses using Cu Kα radiation for the first time.
更新日期:2019-12-23

 

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