title: Four new isoflavone triglycosides from Sophora japonica.
abstract: Four new isoflavone triglycosides, genistein 7-O-beta-D-glucopyranoside-4'-O-[(alpha-L-rhamnopyranosyl)-(1-->2)-beta-D-glucopyranoside] (1), genistein 7-O-beta-D-glucopyranoside-4'-O-[(beta-D-glucopyranosyl)-(1-->2)-beta-D-glucopyranoside] (2), genistein 7-O-alpha-L-rhamnopyranoside-4'-O-[(alpha-L-rhamnopyranosyl)-(1-->2)-beta-D-glucopyranoside] (3), and genistein 7-O-alpha-L-rhamnopyranoside-4'-O-[(beta-D-glucopyranosyl)-(1-->2)-beta-D-glucopyranoside] (4), together with nine known compounds, namely, genistein 7-O-beta-D-glucopyranoside-4'-O-beta-D-glucopyranoside, sophorabioside, prunetin 4'-O-beta-D-glucopyranoside, sophororicoside, genistin, rutin, kaempferol 3-O-beta-rutinoside, quercetin 3-O-beta-D-glucopyranoside, and kaempferol 3-O-beta-D-glucopyranoside, were isolated from the pericarps of Sophora japonica. The structures of 1-4 were determined by spectroscopic methods.
authors.affiliation: Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210038, People's Republic of China. yptang@pub.sioc.ac.cn
authors.forename: Y
authors.initials: Y
authors.lastname: Tang
authors.forename: F
authors.initials: F
authors.lastname: Lou
authors.forename: J
authors.initials: J
authors.lastname: Wang
authors.forename: S
authors.initials: S
authors.lastname: Zhuang
mesh_terms: D002240:Carbohydrate Sequence; D002855:Chromatography, Thin Layer; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D005638:Fruit / Q000737:chemistry; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D007529:Isoflavones / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000031:analogs & derivatives / Q000737:chemistry; D012431:Rutin / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D007529:Isoflavones; D012431:Rutin; D011794:Quercetin