Oleanane Saponins from Rhizome of Anemone raddeana

✍ Scribed by Li Fan; Jincai Lu; Beibei Xu; Song Gao; Hongfen Zhang; Runxiang Liu

• Book ID: 102253703
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: German
• Weight: 181 KB
• Volume: 93
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.200900131

✦ Synopsis

Abstract

Two new oleanolic acid‐type triterpenoid saponins, raddeanosides R~22~ and R~23~ (1 and 2, resp.), together with four known saponins were isolated from the rhizome of Anemone raddeana Regel. The structures of the new compounds were elucidated as oleanolic acid 3‐O‐β‐D‐glucopyranosyl(1→2)[β‐D‐glucopyranosyl(1→4)]‐α‐L‐arabinopyranoside (1) and oleanolic acid 3‐O‐α‐L‐arabinopyranosyl(1→3)‐α‐L‐rhamnopyranosyl(1→2)[β‐D‐glucopyranosyl(1→4)]‐α‐L‐arabinopyranoside (2). The four known compounds were identified as oleanolic acid 3‐O‐α‐L‐arabinopyranoside (3), oleanolic acid 3‐O‐β‐D‐glucopyranosyl(1→4)‐α‐L‐arabinopyranoside (4), hederasaponin B (5), and hederacholchiside E (6) on the basis of chemical and spectral evidences. Compound 4 is reported for the first time from the Anemone genus, while the other three known compounds have been already found in this plant.