[New triterpenoid saponins from Anemone begoniifolia].
OBJECTIVE
To study the triterpenoid saponins in the whole plants of Anemone begoniifolia Lévl. et Vant.


METHODS
Methanol extraction, normal and reversed phase silica gel column chromatography and various spectral analysis were used to isolate and determine the structures of the triterpenoid saponins.


RESULTS
Four triterpenoid saponins were idenetified as: 3-O-beta-D-glucopyranosyl(1-->2)-alpha-L-arabinopyranosyl oleanolic acid 28-O-alpha-L-rhamnopyranosyl (1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranoside (1), 3-O-beta-D-glucopyranosyl (1-->3)-alpha-L-arabinopyranosyl oleanolic acid 28-O-alpha-L-rhamnopyranosyl (1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranoside (2), 23-O-methyl malonyl hederagenin 28-O-alpha-L-rhamnopyranosyl (1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranoside (3) and 3-O-methyl malonyl hederagenin 28-O-alpha-L-rhamnopyranosyl (1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranoside (4).


CONCLUSIONS
Compunds 2, 3 and 4 are new compounds and named as begoniifolides A, B and C, respectively.
Liao
X
X
Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
Li
B G
BG
Ding
L S
LS
Pan
Y J
YJ
Chen
Y Z
YZ
D029626:Ranunculaceae / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
D012503:Saponins; D014315:Triterpenes