A bioactive triterpene from Lantana camara.

Lantana camara afforded a novel triterpene 22 beta-acetoxylantic acid and the known triterpenes, lantic acid, 22 beta-dimethylacryloyloxylantonolic acid, a mixture of 22 beta-dimethylacryloyloxy lantanolic acid and 22 beta-angeloyloxylantanolic acid and lantanolic acid. 22 beta-Acetoxylantic acid showed antimicrobial activity against Staphylococcus aureus and Salmonella typhi. This compound and 22 beta-dimethylacryloyloxy lantanolic acid also showed antimutagenic activity.