title: Characterization of the triterpene saponins of the roots and rhizomes of blue cohosh (Caulophyllum thalictroides).
abstract: Seven triterpene saponins were isolated from n-butanol fractions of blue cohosh (Caulophyllum thalictroides) roots and rhizomes. Their structures were established by spectral ((1)H NMR, (13)C NMR, 2D-NMR, and APCI-MS) techniques and chemical reactions as hederagenin 3-O-alpha-L-arabinopyranoside (1); caulophyllogenin 3-O-alpha-L-arabinopyranoside (2); hederagenin 3-O-beta-D-glucopyranosyl-(1-->2)-alpha-L-arabinopyranoside (3); 3-O-alpha-L-arabinopyranosyl-hederagenin 28-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside (4); 3-O-alpha-L-arabinopyranosyl- caulophyllogenin 28-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside (5); 3-O-beta-D-glucopyranosyl-(1-->2)-alpha-L-arabinopyranosyl- echinocystic acid 28-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside (6); 3-O-beta-D-glucopyranosyl-(1-->2)-alpha-L-arabinopyranosyl-hederagenin 28-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside (7). All seven compounds were identified in this species for the first time.
authors.affiliation: Department of Food Science and Center for Advanced Food Technology, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey, 08901, USA.
authors.forename: J W
authors.initials: JW
authors.lastname: Jhoo
authors.forename: S
authors.initials: S
authors.lastname: Sang
authors.forename: K
authors.initials: K
authors.lastname: He
authors.forename: X
authors.initials: X
authors.lastname: Cheng
authors.forename: N
authors.initials: N
authors.lastname: Zhu
authors.forename: R E
authors.initials: RE
authors.lastname: Stark
authors.forename: Q Y
authors.initials: QY
authors.lastname: Zheng
authors.forename: R T
authors.initials: RT
authors.lastname: Rosen
authors.forename: C T
authors.initials: CT
authors.lastname: Ho
mesh_terms: D028141:Berberidaceae / Q000737:chemistry*; D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D027343:Rhizome / Q000737:chemistry*; D012503:Saponins / Q000032:analysis*; D014315:Triterpenes / Q000032:analysis*
chemical_list: D009844:Oligosaccharides; D012503:Saponins; D014315:Triterpenes