title: Pithedulosides A-G, oleanane glycosides from Pithecellobium dulce.
abstract: Seven saponins named pithedulosides A-G were isolated from the seeds of Pithecellobium dulce. Their structures were established through spectral analyses as echinocystic acid 3-O-alpha-L-arabinopyranosyl-(1-->6)-beta-D-glucopyranoside, echinocystic acid and oleanolic acid 3-O-alpha-L-arabinopyranosyl- (1-->2)-alpha-L-arabinopyranosyl-(1-->6)-beta-D-glucopyranosides and 3-O-beta-D-xylopyranosyl-(1-->2)-alpha-L-arabinopyranosyl -(1-->6)-beta-D-glucopyranosides, oleanolic acid 3-O-alpha-L-arabinopyranosy-(1-->2)-alpha-L- arabinopyranosyl-(1-->6)-[beta-D-glucopyranosyl-(1-->2)]-beta- D-glucopyranoside, and 3-O-beta-D-xylopyranosyl-(1-->2)-alpha-L-arabinopyranosyl-(1-->6) -[beta-D-glucopyranosyl-(1-->2)]--beta-D-glucopyranoside.
authors.affiliation: Upgraded Department of Pharmacology and Therapeutics, K. G's Medical College, Lucknow, India.
authors.forename: S K
authors.initials: SK
authors.lastname: Nigam
authors.forename: M
authors.initials: M
authors.lastname: Gopal
authors.forename: R
authors.initials: R
authors.lastname: Uddin
authors.forename: K
authors.initials: K
authors.lastname: Yoshikawa
authors.forename: M
authors.initials: M
authors.lastname: Kawamoto
authors.forename: S
authors.initials: S
authors.lastname: Arihara
mesh_terms: D002240:Carbohydrate Sequence; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared; D014197:Trees / Q000737:chemistry*
chemical_list: D006027:Glycosides