A New Bidesmosidic Triterpenoidal Saponin from the Roots of Symphytum officinale.
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.
Ahmad
V U
VU
H. E. J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan.
Mohammad
F V
FV
Noorwala
M
M
Sener
B
B