| Abstract
| - The leaves of Luvunga sarmentosa yielded two new apotirucallane triterpenoids, 3-epi-skimmiarepin A(1) and 21,23-epoxy-7α,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 as mixtures of21-epimers. 3-epi-Skimmiarepin A (1) and 3-epi-flindissol (3) were oxidized to the corresponding γ-lactones.The structures have been elucidated on the basis of mass and NMR spectroscopic methods.
|
