A triterpenoid saponin from Maesa ramentacea

Article abstract of DOI:10.1016/S0031-9422(96)00556-0

The structure of a piscicidal triterpenoid saponin (saponin A) isolated from the leaves of Maesa ramentacea has been shown to be 3-O-{[(α-L- rhamnopyranosyl(1→2)-a-L-rhamnopyranosyl(1→2)-β-D-galactopyranosyl(1→3)]- [β-D-glucopyranosyl-(1→2)]-β-D-glucuronopyranosyl}barringtogenol C21, 22- O-diangeloate. Extensive use was made of homo- and heteronuclear 2D NMR techniques.