Abstract

Further investigation of the marine mangrove-derived fungal strain Penicillium sp. MA-37 led to the isolation of one new benzophenone, iso-monodictyphenone (1), two new diphenyl ether derivatives penikellides A (2) and B (3), and two known analogs monodictyphenone (4) and 6-[2-hydroxy-6-(hydroxymethyl)-4-methylphenoxy]-2-methoxy-3-(1-methoxy-3-methylbutyl)benzoic acid (5). The structures of these compounds were elucidated by spectroscopic analyses including 1D- and 2D-NMR and mass spectrometry. The brine shrimp lethality and antibacterial activity against five aquaculture pathogens were evaluated.

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