Oleanene-Type Triterpene Glycosides from Puerariae Radix. IV. Six New Saponins from Pueraria lobata

概要

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From Puerariae Radix, the root of Pueraria lobata (Leguminosae), six new oleanene-type triterpene glycoside, called kudzusaponins A_1 (1), A_2 (2), A_4 (3), A_5 (4), SA_4 (5), and SB_1 (6) were isolated together with kudzusaponin A_3 (7), soyasaponins SA_3 (8), and I (9). The structures of 1-6 were determined to be 3-O-α-L-rhamnopyranosyl-(1→2)-β-D-arabinopyranosyl-(1→2)-β-glucuronopyranosyl kudzusapogenol A 22-O-β-D-xylopyranoside, 3-O-β-D-galactopyranosyl-(1→2)-β-D-glucuronopyranosyl kudzusapogenol A, 3-O-β-D-glucopyranosyl-(1→2)-β-D-glucuranopyranosyl kudzusapogenol A, 3-O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranosyl-(1→2)-β-D-glucuronopyranosyl kudzusapogenol A, 3-O-β-D-glucuronopyranosyl-(1→2)-β-D-glucuronopyranosyl soyasapogenol A 22-O-α-L-arabinopyranoside, and 3-O-α-L-rhamnopyranosyl-(1→2)-β-D-galactopyranosyl-(1→2)-β-D-glucuronopyranosyl (β-fabatriosyl) soyasapogenol B 22-O-α-L-arabinopyranoside, respectively.
社団法人日本薬学会の論文
1997-02-15