Structure elucidation of two triterpenoid saponins from rhizome of Anemone raddeana Regel.
Two new 27-hydroxy-oleanolic acid type triterpenoid saponins, raddeanoside 20 (1) and raddeanoside 21(2) were isolated from the rhizome of Anemone raddeana Regel. The structures of the two compounds were elucidated as 27-hydroxy-oleanolic acid 3-O-alpha-L-rhamnopyranosyl(1-->2) [beta-D-glucopyranosyl (1-->4)]-alpha-L-arabinopyranoside (1) and 3-O-alpha-L-rhamnopyranosyl (1-->2)-alpha-L-arabinopyranosyl-27-hydroxy-oleanolic acid 28-O-alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranoside (2) on the basis of chemical and spectral evidence.
College of Traditional Chinese Medicine, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang, Liaoning Province 110016, PR China. jincailu@yahoo.com.cn
Jincai
J
Lu
Beibei
B
Xu
Song
S
Gao
Li
L
Fan
Hongfen
H
Zhang
Runxiang
R
Liu
Hiroyuki
H
Kodama
D031883:Anemone / Q000737:chemistry*; D015394:Molecular Structure; D027343:Rhizome; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification
C544615:27-hydroxyoleanolic acid 3-O-rhamnopyranosyl-1-2-(glucopyranosyl-1-4-arabinopyranoside); C544616:3-O-rhamnopyranosyl-1-2-arabinopyranosyl-27-hydroxyoleanolic acid 28-O-rhamnopyranosyl-1-4-glucopyranosyl-1-6-glucopyranoside; D012503:Saponins