Triterpene saponins from the fruits of Hedera helix

Abstract

Six triterpene saponins, including two new compounds, were isolated from the fruits of Hedera helix L. (Araliaceae). The structures of the new compounds, named helixosides A and B, were established as 3- O-β- D-glucopyranosyl-(1→2)-β- D-glucopyranosyl hederagenin 28- O-β- D-glucopyranosyl-(1→6)-β- D-glucopyranosyl ester, and 3- O-β- D-glucopyranosyl-(1→2)-β- D-glucopyranosyl oleanolic acid 28- O-β- D-glucopyranosyl-(1→6)-β- D-glucopyranosyl ester, respectively, on the basis of chemical and spectral data.