New Triterpene Diglycosides from the Rhizome of Cimifuga foetida

Five new 9,19-cycloartane triterpene diglycosides, which have been named cimiaceroside C (1), and cimifosides A-D (2-5) together with the known compounds cimiracemoside D (6), cimidahurine (7) and α-d-glucopyranosyl-l-β-d-fructofuranoside (8) were isolated from the rhizome of Cimicifuga foetida. The new triterpene diglycosides 1-5 were identified as cimiacerol-3-O-β-d-xylopyranosyl-(1''→3')-β-d-xylopyranoside, 12β-hydroxycimigenol-3-O-β-d-xylopyranosyl-(1''→3')-β-d-xylopyranoside, 25-O-acetylcimig- enol-3-O-β-d-xylopyranosyl-(1''→3')-β-d-xylopyranoside, 24-acetylhydroshengmanol-3-O-β-d-xylopyranosyl-(1''→3')-β-d-xylopyranoside and 26-deoxyacetylacteol-3-O-β-d-xylo- pyranosyl-(1''→3')-β-d-xylopyranoside, respectively, based on analysis of their spectral data and chemical reactions.