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A new triterpenoid saponin, 3-O-[(60-butyryl)-b-D-glucopyranosyl]-28-O-[a-L-rhamnopyranosyl-(1→4)-b-D-glucopyranosyl- (1→6)-b-D-glucopyranosyl] oleanolic acid, as well as three known triterpenoid saponins were isolated from the rhizomes of Anemone flaccida. Their structures were elucidated by spectroscopic methods. These compounds showed significant antitumor activities.
A new triterpenoid saponin 3-O - (60-butyryl) -bD-glucopyranosyl] -28-O- [aL- rhamnopyranosyl- (1 → 4) -bD-glucopyranosyl- Their structures were elucidated by spectroscopic methods. These compounds showed significant antitumor activities.