A new -pyrone derivative, acrepyrone A (), and three known sorbicillinoids, trichodimerol (), dihydrotrichodimerol () and tetrahydrotrichodimerol () were isolated from an endophytic fungus, SS-g13, harboured in the roots of the Chinese medicinal plant Their structures were determined by analysing MS, NMR, and ECD data. Compound was evaluated for its cytotoxic effect, antibacterial activity and quorum sensing inhibitory potential.
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