Oleanene-type triterpene glycosides from puerariae radix. IV. Six new saponins from Pueraria lobata.
From Puerariae Radix, the root of Pueraria lobata (Leguminosae), six new oleanene-type triterpene glycosides, called kudzusaponins A1 (1), A2 (2), Ar (3), SA4 (5), and SB1 (6) were isolated together with kudzusaponin A3 (7), soyasaponins SA3 (8), and I (9). The structures of 1-6 were determined to be 3-O-alpha-L-rhamnopyranosyl- (1-->2)-beta-D-arabinopyranosyl-(1-->2)beta-D-glucuronopyranosy l kudzusapogenol A 22-O-beta-D-xylopyranoside, 3-O-beta- D-galactopyranosyl-(1-->2)-beta-D-glucuronopyranosyl kudzusapogenol A, 3-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucuronopyranosyl kudzusapogenol A, 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranosyl-(1-->2)-beta- D-glucoronopyranosyl kudzusapogenol A, 3-O-beta-D-glucuronopyranosyl[(1-->2)-beta-D-glucuronopyranosyl soyasapogenol A22-O-alpha-L-arabinopyranoside,and 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-galactopyranosyl- (1-->2)-beta- D-glucuronopyranosyl (beta-fabatriosyl) soyasapogenol B 22-O-alpha-L-arabinopyranoside, respectively.
Arao
T
T
Faculty of Pharmaceutical Sciences, Kumamoto University, Japan.
Kinjo
J
J
Nohara
T
T
Isobe
R
R
D002240:Carbohydrate Sequence; D002855:Chromatography, Thin Layer; D006027:Glycosides / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D009828:Oleanolic Acid / Q000031:analogs & derivatives*; D010936:Plant Extracts / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry*
D006027:Glycosides; D010936:Plant Extracts; D012503:Saponins; D014315:Triterpenes; C102414:kudzusaponin B1; D009828:Oleanolic Acid