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  • Title: Two new triterpenoid saponins from rhizome of Anemone raddeana Regel.
    Author: Fan L, Lu J, Wang J, Cheng W, Yao Y, Liu R, Zhang H.
    Journal: J Nat Med; 2010 Jan; 64(1):50-4. PubMed ID: 20091239.
    Abstract:
    Two new 27-hydroxyoleanolic acid-type triterpenoid saponins, raddeanoside Ra (1) and raddeanoside Rb (2), were isolated from the rhizome of Anemone raddeana Regel. The structures of the two compounds were elucidated to be 27-hydroxyoleanolic acid 3-O-beta-D: -glucopyranosyl-(1 --> 4)-alpha-L: -arabinopyranoside (1) and 27-hydroxyoleanolic acid 3-O-alpha-L: -arabinopyranosyl-(1 --> 3)-alpha-L: -rhamnopyranosyl-(1 --> 2)-alpha- L: -arabinopyranoside (2) on the basis of chemical and spectral evidence.
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