title: A new oleanene glucuronide obtained from the aerial parts of Melilotus officinalis.
abstract: A new oleanene glucuronide called melilotus-saponin O2 (1) was isolated together with three known ones (soyasaponin I, astragaloside VIII, wistariasaponin D) from the aerial parts of Melilotus officinalis (L.) Pallas (Leguminosae). The structure of 1 was determined to be 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-xylopyranosyl- (1-->2)-beta-D-glucuronopyranosyl melilotigenin by spectroscopic and chemical methods.
authors.affiliation: Faculty of Pharmaceutical Sciences, Kumamoto University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Hirakawa
authors.forename: M
authors.initials: M
authors.lastname: Okawa
authors.forename: J
authors.initials: J
authors.lastname: Kinjo
authors.forename: T
authors.initials: T
authors.lastname: Nohara
mesh_terms: D002240:Carbohydrate Sequence; D002855:Chromatography, Thin Layer; D008969:Molecular Sequence Data; D009828:Oleanolic Acid / Q000031:analogs & derivatives*; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D016339:Spectrometry, Mass, Fast Atom Bombardment
chemical_list: D012503:Saponins; C406471:melilotus saponin O(2); D009828:Oleanolic Acid