Formoxazine, a New Pyrrolooxazine, and Two Amines from the Marine-Mudflat-Derived Fungus Paecilomyces formosus.

The article discusses the results of studies analyzing the bioactive constituents of marine-derived microorganisms. It details the discovery that a crude extract from a small-scale culture of the marine-mudflat-derived fungus Paecilomyces formosus displayed radical-scavenging activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) and in vitro antimicrobial activity against methicillin- and multidrug-resistant Staphylococcus aureus (MRSA and MDRSA).