Fei-Xue Yu

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An endophytic fungus, Chaetomium sp. M453, was isolated from Huperzia serrata (Thunb. ex Murray) Trev. and subjected to phytochemical investigation. Three unusual C25 steroids, neocyclocitrinols E-G (1-3), and 3β-hydroxy-5,9-epoxy-(22E,24R)-ergosta-7,22-dien-6-one (4) together with three known steroids were isolated from solid fermentation products of the(More)
A new compound 6-formamide-chetomin (1) together with chetomin (2) was isolated from solid fermentation products of the endophytic fungus Chaetomium sp. M336, which were elucidated by extensive spectroscopic analyses, including 1D and 2D NMR, and HR-ESI-MS experiments. The bioassay result showed that compound 1 had strong antibacterial activity against(More)
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