Ginsenoside-Ia: a novel minor saponin from the leaves of Panax ginseng.
A new saponin, named ginsenoside-I (a), was isolated from leaves of Panax Ginseng, together with nine known saponins, and its structure was elucidated as 3beta,6alpha,12beta,20(S)-tetrahydroxyldammar-24(25)-ene (20- O-beta-D-glucopyranosyl)-3-O-beta-D-glucopyranoside on the basis of chemical and 2D-NMR methods.
Dou
D
D
Wen
Y
Y
Pei
Y
Y
Yao
X
X
Chen
Y
Y
Kawai
H
H
Fukushima
H
H