ECB-ART-48954
J Agric Food Chem
2021 Sep 29;6938:11216-11224. doi: 10.1021/acs.jafc.1c03513.
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New Xanthones with Antiagricultural Fungal Pathogen Activities from the Endophytic Fungus Diaporthe goulteri L17.
Abstract
Six new xanthone dimers, diaporxanthones A-F (1-6), and an unusual xanthone monomer diaporxanthone G (7), in addition to seven known analogues (8-14), were isolated and identified from endophytic Diaporthe goulteri L17 harbored in the fruits of the salt-tolerant plant Vitex trifolia. The chemical structures of these metabolites were elucidated on the basis of nuclear magnetic resonance, high-resolution electrospray ionization mass spectrometry, and reported data in the literature. Their absolute configurations were established by single-crystal X-ray diffraction analysis together with time-dependent density functional theory electronic circular dichroism calculations. Among these compounds, compounds 1 and 6 exhibited moderate antifungal activities against Nectria sp. and Colletotrichum musae and compound 4 showed significant cytotoxicity against all selected five cancer cell lines.
PubMed ID: 34541846
Article link: J Agric Food Chem