title: A bidesmosidic triterpene glycoside from the roots of Symphytum officinale.
abstract: A new bidesmosidic triterpenoidal saponin of hederagenin was isolated from the ethanolic extract of the roots of Symphytum officinale L. Its structure was elucidated by using 1H NMR, 1H-1H COSY NMR, heteronuclear 1H-13C correlated spectroscopy (heteroCOSY), 13C NMR, DEPT, FAB mass spectrometry and chemical evidence as 3-O-alpha-L-arabinopyranosyl]-hederagenin-28-O-[beta-D-gluco pyranosyl- (-->4)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyl]ester.
authors.affiliation: H.E.J. Research Institute of Chemistry, University of Karachi, Pakistan.
authors.forename: M
authors.initials: M
authors.lastname: Noorwala
authors.forename: F V
authors.initials: FV
authors.lastname: Mohammad
authors.forename: V U
authors.initials: VU
authors.lastname: Ahmad
authors.forename: B
authors.initials: B
authors.lastname: Sener
mesh_terms: D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008969:Molecular Sequence Data; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000302:isolation & purification*; D014315:Triterpenes / Q000302:isolation & purification*
chemical_list: D012503:Saponins; D014315:Triterpenes