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-β-d-glucopyranosyl-(1 → 4)-α-l-arabinopyranoside (1) and 27-hydroxyoleanolic acid 3-O-α-l-arabinopyranosyl-(1 → 3)-α-l-rhamnopyranosyl-(1 → 2)-α- l-arabinopyranoside (2) on the basis of chemical and spectral evidence.
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Acknowledgments
This project was supported by National Natural Science Foundation of China (No. 30500050). We also thank Dr. Weiming Cheng, Shenyang Pharmaceutical University, for measuring the HRESI-MS.
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Fan, L., Lu, J., Wang, J. et al. Two new triterpenoid saponins from rhizome of Anemone raddeana Regel. J Nat Med 64, 50–54 (2010). https://doi.org/10.1007/s11418-009-0369-x
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DOI: https://doi.org/10.1007/s11418-009-0369-x