作者: Yuben Qiao , Kun Tu , Wenya Feng , Junjun Liu , Qianqian Xu
关键词: Bioassay 、 Polyketide 、 Strain (chemistry) 、 In vitro 、 Stereochemistry 、 Circular dichroism 、 Biological activity 、 Chemistry 、 Ergosterol 、 Aspergillus
摘要: Eight secondary metabolites, including a new polyketide, named asperetide (1) and prenylxanthone derivative, called asperanthone (4), six known compounds, (S)-3-butyl-7-methoxyphthalide (2), ruguloxanthone C (3), tajixanthone hydrate (5), methanoate (6), salimyxin B (7), ergosterol (8), were isolated identified from the medicinal plant-derived fungus, Aspergillus sp. TJ23. The structures their absolute configurations elucidated via multiple methods, 1D- 2D-NMR, HR-ESI-MS, UV, IR, electronic circular dichroism (ECD) calculations. All of isolates characterized strain for first time. in vitro bioassay showed that compounds 3-5 8 exerted inhibitory activities against five cancer cell lines (B16, MDA-MB-231, 4T1, HepG2, LLC) with IC50 values ranging 5.13 to 36.8 μm.