The leaves of Luvunga sarmentosa yielded two new apotirucallane triterpenoids, 3-epi-skimmiarepin A (1) and 21,23-epoxy-7alpha,21-dihydroxyapotirucalla-14,24-dien-3-one (2), and a new tirucallane triterpene, 3-epi-flindissol (3). Because of a hemiacetal functionality at C-21, all compounds occurred
The leaves of Luvunga sarmentosa (Bl.) Kurz. yielded eight apotirucallane triterpenoids named luvungins A-G, and 1alpha-acetoxyluvungin A. Characteristic of the structure are the seven-membered lactone-ring A, the alpha-hydroxyl or alpha-acetoxyl group at C-7 and an oxygen bridge in the side chain