title: Triterpenoid saponins containing an acetylated branched D-fucosyl residue from Quillaja saponaria Molina.
abstract: Seven novel saponins were isolated from a bark extract of Quillaja saponaria Molina. the compounds were characterized, using mainly NMR spectroscopy, mass spectrometry and chemical methods, as quillaic acid substituted at C-3 with oligosaccharides consisting of various compositions of D-glucuronic acid D-galactose, D-xylose, and L-rhamnose and at C-28 with complex oligosaccharide structures consisting of various compositions of D-xylose, L-rhamnose, D-apiose and a branched 4-O-acetyl-D-fucose residue.
authors.affiliation: Department of Chemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden.
authors.forename: S
authors.initials: S
authors.lastname: Guo
authors.forename: E
authors.initials: E
authors.lastname: Falk
authors.forename: L
authors.initials: L
authors.lastname: Kenne
authors.forename: B
authors.initials: B
authors.lastname: Rönnberg
authors.forename: B G
authors.initials: BG
authors.lastname: Sundquist
mesh_terms: D000107:Acetylation; D002240:Carbohydrate Sequence; D005643:Fucose / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D009828:Oleanolic Acid / Q000031:analogs & derivatives*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D014197:Trees / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry*
chemical_list: D012503:Saponins; D014315:Triterpenes; D005643:Fucose; D009828:Oleanolic Acid