title: A triterpenoid saponin from Albizia julibrissin.
abstract: A triterpenoid saponin (1) was obtained from the stem barks of Albizia julibrissin Durazz. Its structure was elucidated as 3-O-[beta-D-xylopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl-(1 --> 6)-beta-D-glucopyranosyl]-21-O-[(6S)-2-trans-2-hydroxymethyl-6-methyl-6-O-beta-D-quinovopyranosyl-2, 7-octadienoyl]-16-deoxy-acacic acid 28-O-beta-D-glucopyranosyl-(1 --> 3)-[alpha-L-arabinofuranosyl-(1 --> 4)]-alpha-L-rhamnopyranosyl-(1 --> 2)-beta-D-glucopyranosyl ester (1), named as Julibroside J26, based on the chemical and spectral methods.
authors.affiliation: Department of Natural Medicines, Beijing Medical University, PR China.
authors.forename: K
authors.initials: K
authors.lastname: Zou
authors.forename: Y Y
authors.initials: YY
authors.lastname: Zhao
authors.forename: G Z
authors.initials: GZ
authors.lastname: Tu
authors.forename: D A
authors.initials: DA
authors.lastname: Guo
authors.forename: R Y
authors.initials: RY
authors.lastname: Zhang
authors.forename: J H
authors.initials: JH
authors.lastname: Zheng
mesh_terms: D002240:Carbohydrate Sequence; D002851:Chromatography, High Pressure Liquid; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D008969:Molecular Sequence Data; D039821:Monoterpenes; D018547:Plant Stems / Q000737:chemistry; D019685:Rosales / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D039821:Monoterpenes; D012503:Saponins; D014315:Triterpenes; C436370:julibroside J(1); C436368:julibroside J(26)