Abstract
The extensively chemical investigation of the EtOAc extract of the soil fungus Penicillium virgatum T49-A has successfully led to the isolation of two undescribed secondary metabolites penivirtone A (1) and peniviramide B (2) together with six known compounds. Their chemical structures including the absolute configurations of the two new compounds were comprehensively established by extensive analyses of NMR and HRESIMS spectra as well as ECD powered by theoretical calculations. Moreover, the cytotoxic and antibacterial activities of compounds 1–2 were also evaluated, whereas the two novel compounds showed no notable cytotoxic and antibacterial activities.
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