Abstract

Two new berkeley meroterpenoids (1 and 2), along with seven known compounds (3‒9) were isolated from a fungus, Penicillium sp. SSW03M2 GY derived from a sediment at Seosan bay, South Korea. Chemical structures of the isolated compounds were elucidated on the basis of 1D, 2D NMR, HRESIMS, and optical rotation. All the isolated compounds, 1 showed anti-virulence activity by significantly inhibiting α-toxin (Hla) secreted by methicillin-resistant Staphylococcus aureus without its growth inhibition.

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