title: [Triterpenoid saponins from flower bud of Jasminum officinale var. grandiflorum].
abstract: OBJECTIVE
  To study the chemical constituent bud of the flowers of Jasminum officinale var. grandiflorum.
  
  
  METHODS
  The compounds were isolated and purified by recrystallization and chromatography on silica gel and Sephadex LH - 20 column. Their structures were elucidated on the basis of physicochemical properties and spectral analysis.
  
  
  RESULTS
  Six triterpenoid saponins were identified as 3-O-alpha-L-rhamnopyranosyl (1 --> 2)-beta-D-xylopyranosyl- hederagenin-28-O-beta-D-galactopyranosyl (1 --> 6)-beta-D-galactopyranosyl ester (1), hederagenin-3-O-beta-D-glucopyranosyl (1 --> 3)-alpha-L-arabinopyranoside (2), 2alpha, 3beta, 23-trihydroxyolean-12-en-28-oic-O-beta-D-glucopyranosyl ester (3), hederagenin-3-O-beta-D-xylopyranosyl (1 --> 3)-alpha-L-rhamnopyranosyl (1 --> 2)-alpha-L-arabinopyranoside (4), 2alpha, 3beta, 23-trihydroxyolean-12-en-28-oic-O-alpha-L-rhamnopyranosyl (1 --> 4)-beta-D-glucopyranosyl (1 --> 6)-beta-D-glucopyranosyl ester (5), hederagenin-3-O-alpha-L-rhamnopyranosyl (1 --> 2)-alpha-L-arabinopyranoside (6).
  
  
  CONCLUSIONS
  Compound 1 is a new compound. Compounds 2, 3, 4, 5, 6 were isolated from the genus Jasminum for the first time.
authors.affiliation: Institute of Radiation Medicine, Academy of Military Medical Science, Beijing 100850, China.
authors.forename: Gui-Qin
authors.initials: GQ
authors.lastname: Zhao
authors.forename: Jun-Xing
authors.initials: JX
authors.lastname: Dong
mesh_terms: D002850:Chromatography, Gel; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D035264:Flowers / Q000737:chemistry*; D031660:Jasminum / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D004365:Drugs, Chinese Herbal; D012503:Saponins; D014315:Triterpenes