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27-Hydroxyoleanolic acid type triterpenoid saponins from Anemone raddeana rhizome
1College of Traditional Chinese Medicine, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang, Liaoning Province 110016, PR China.
Abstract:
Two new 27-hydroxyoleanolic acid type triterpenoid saponins were isolated from the rhizomes of Anemone raddeana Regel. The structures of the two compounds were elucidated as 27-hydroxyoleanolic acid 3-O-beta-D-glucopyranosyl (1 --> 2)-alpha-L-arabinopyranoside (1) and 3-O-alpha-L-rhamnopyranosyl (1 --> 2)[beta-D-glucopyranosyl (1 --> 4)]-alpha-L-arabinopyranosyl-27-hydroxyoleanolic 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.