1. A new resorcylic acid lactone from the endophytic fungus Chaetosphaeronema sp.
- Author
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Wang, Min, Xia, Gui-Yang, Liang, Yong-Xin, Xia, Huan, Lin, Peng-Cheng, and Lin, Sheng
- Subjects
HIGH performance liquid chromatography ,STATISTICAL correlation ,RESEARCH funding ,NUCLEAR magnetic resonance spectroscopy ,PROBABILITY theory ,FUNGI ,IMMUNODIAGNOSIS ,PLANT extracts ,MOLECULAR structure ,SPECTRUM analysis ,X-rays ,RESEARCH ,LACTONES ,ORGANIC compounds ,CRYSTALLOGRAPHY ,CELL surface antigens - Abstract
A new 14-membered resorcylic acid lactone (RAL
14 ), chaetolactone A (1), along with three known ones (2−4), was obtained from the fermentation of the soil-derived fungus Chaetosphaeronema sp. SSJZ001. Their structures were established based on extensive spectroscopic data analyses (UV, IR, HRESIMS, 1D, and 2D NMR),13 C NMR chemical shifts calculations coupled with the DP4+ probability method, theoretical calculations of ECD spectra, as well as X-ray diffraction analysis. All compounds were evaluated for their cytotoxic effects against A549, HO-8910, and MCF-7 cell lines. [ABSTRACT FROM AUTHOR]- Published
- 2024
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