title: Nortriterpene Saponins from Akebia trifoliate.
abstract: Three new nortriterpene saponins, 2α,3β,20α-trihydroxy-30-norolean-12-en-28-oic acid O-β-D-xylopyranosyl-(1-->3)-α-L-rhamnopyranosyl-(1-->4)-β-D- glucopyranosyl-(1-->6)-β-D-glucopyranosyl ester (3), 2α,3β,20α-trihydroxy-30-norolean-12-en-28-oic acid O-α-L-rhamnopyranosyl-(1-->4)-β-D- glucopyranosyl-(1-->6)-β-D-glucopyranosyl ester (4), and 2α,3β,23-trihydroxy-30-noroleana-12,19-dien-28-oic acid O-β-D-xylopyranosyl-(1-->3)-α-L- rhamnopyranosyl-(1-->4)-β-D-glucopyranosyl-(1-->6)-β-D-glucopyranosyl ester (6), were isolated from the methanol extract of the pericarps of Akebia trifoliata Koidzumi (Lardizabalaceae), together with five known nortriterpene saponins and three phenolic glycosides. Their structures were elucidated by spectroscopic analyses and acid hydrolysis.
authors: Keiichi
authors: K
authors: Matsuzaki
authors: Kayo
authors: K
authors: Murano
authors: Yurika
authors: Y
authors: Endo
authors: Susumu
authors: S
authors: Kitanaka
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry*; D010936:Plant Extracts / Q000032:analysis; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D010936:Plant Extracts; D012503:Saponins; D014315:Triterpenes