Cimiracemosides I−P, New 9,19-Cyclolanostane Triterpene Glycosides from Cimicifuga racemosa

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Abstract
Eight new and 13 known triterpene glycosides, along with the known compounds glyceryl-1-palmitate and daucosterol-6‘-linoleate were isolated from the roots/rhizomes of Cimicifuga racemosa. The new compounds, designated as cimiracemosides I−P (1, 3−9), were determined by spectral analysis to be 7-dehydro-23-epi-12,26-dideoxyacteol-3-O-β-d-xylopyranoside (1), 12-O-acetyl-25-anhydrocimigenol-3-O-α-l-arabinopyranoside (3), 12-O-acetyl-25-anhydrocimigenol-3-O-β-d-xylopyranoside (4), 4‘,23-O-diacetylshengmanol-3-O-β-d-xylopyranoside (5), 4‘,23-O-diacetylshengmanol-3-O-α-l-arabinopyranoside (6), 23-epi-acetylacteol-3-O-α-l-arabinopyranoside (7), 4‘-O-acetyl-26-deoxyactein (8), and 16β:23;24:25-diepoxy-12β-O-acetyl-3β-hydroxy-9,19-cyclolanost-23,26-olide-O- β-d-xylopyranoside (9).