Antibacterial -trachyloban-19-oic acid and other constituents from G.W. Hu, Ngumbau & Q.F. Wang.

Phytochemical analysis of the twigs and leaves of , endemic to Kenya, yielded known compounds 3-(3',4'-dimethoxyphenyl)-prop-1-ene (, 3-(3',4'-dimethoxyphenyl)-propenal (), lupeol () and -trachyloban-19-oic acid (), and a tentatively new -clerodane diterpenoid, crotokinondoenolide (). -Trachy-loban-19-oic acid () showed good activity against a panel of drug-resistant strains of and spp with MIC -values of 25 g/mL.