Triterpenoid saponins from Melanthera scandens.
Six saponins were isolated from the leaves of Melanthera scandens. Their structures were elucidated by 2D NMR techniques, including ROESY. They are 3-O-beta-D-glucuronopyranosyl- oleanolic acid, 3-O-[beta-D-xylopyranosyl(1-->4)beta-D-glucuronopyranosyl]- oleanolic acid, 3-O-([beta-D-glucopyranosyl(1-->2)] [beta-D-xylopyranosyl- (1-->4)]beta-D-glucuronopyranosyl)-oleanolic acid, and the corresponding 28-O-beta-D-glucosides.
Penders
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Centre de Recherche Phytochimique, Université de Liege, Belgium.
Delaude
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D000349:Africa; D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
D012503:Saponins; D014315:Triterpenes