Acroflavone A, a new prenylated flavone from the fruit of (L.) Miq.

Phytochemical investigation of the fruit of (L.) Miq. led to the isolation of a new prenylated flavone, acroflavone A (), together with eight known compounds (-). Their structures were elucidated by thorough analysis of mass spectrometric and NMR spectroscopic data. The isolated compounds were evaluated against several bacterial strains. Three known compounds (-) demonstrated antibacterial activities. Among them, acrovestone () proved equally or more potent than chloramphenicol against three out of the four strains tested.