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A new (2) and four known (1, 8-10) sesquiterpenoids, two new (3 and 4) and eight known (5-7, 11-15) xanthone derivatives were isolated from the cultures of sponge-derived fungus Stachybotry sp. HH1 ZDDS1F1-2. The structure of the compounds 1-15 was determined mainly by analysis of the one-dimensional and two-dimensional NMR spectroscopic data and by analogy with the data of those reported. Compound 1 was confirmed by X-ray crystallography. All the compounds were tested for their cytotoxic, antiinflammatory and antiviral (EV71) effects. Compounds 5, 7 and 11 showed significant cytotoxicity against selected human tumor cell lines. Compounds 3, 4 and 11 also displayed significant inhibitory activity against cycloooxygenase (COX-2). Compounds 4, 5 and 11 showed activities against intestinal virus EV71.

Sesquiterpenoids and xanthones derivatives produced by sponge-derived fungus Stachybotry sp. HH1 ZSDS1F1-2