Two New naphthalene-chroman coupled derivatives from the mangrove-derived fungus Cladosporium sp. JJM22

Abstract Two new naphthalene-chroman coupling derivatives, cladonaphchroms A (1) and B (2), along with four known compounds (3-6) were obtained from EtOAc extract of the mangrove-derived fungus Cladosporium sp. JJM22. Their structures were elucidated by detailed analysis of comprehensive spectroscopic data. Compounds 1 and 2 exhibit antibacterial or antifungal activities.