A new beta-D-glucopyranosyl 2-oxo-urs-12-en-28-oate from the Cameroonian plant Combretum bracteatum.

From the Cameroonian plant Combretum bracteatum (Laws.) Engl. and Diels a new compound, beta-D-glucopyranosyl 3 beta,19 alpha-dihydroxy-2-oxo-urs-12-en-28-oate, was isolated along with three known ursane and oleane triterpenes and two galactopyranosyl lipids.