Antimicrobial activities of constituents of Uvaria chamae

The antimicrobial activities of a number of cytotoxic C-benzylated flavonoids from Uvaria chamae have been determined. The minimum inhibitory concentration values of these flavonoids and certain of their derivatives against Straphylococcus aureus, Bacillus subtilis, and Mycobacterium smegmatis compare favorably with those of streptomycin sulfate.