title: A New Bidesmosidic Triterpenoidal Saponin from the Roots of Symphytum officinale.
abstract: A new triterpenoidal saponin having hederagenin as the aglycone was isolated from the roots of SYMPHYTUM OFFICINALE L. The structure of this saponin was elucidated by FAB-MS, (1)H-, (13)C-NMR, 2D-NMR analyses and chemical studies as 3- O-[beta- D-glucopyranosyl-(1-->4)-alpha- L-arabinopyranosyl]-hederagenin 28- O-[beta- D-glucopyranosyl-(1-->6)-beta- D-glucopyranosyl] ester.
authors.affiliation: H. E. J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan.
authors.forename: V U
authors.initials: VU
authors.lastname: Ahmad
authors.forename: F V
authors.initials: FV
authors.lastname: Mohammad
authors.forename: M
authors.initials: M
authors.lastname: Noorwala
authors.forename: B
authors.initials: B
authors.lastname: Sener