title: Furostanol glycosides from bulbs of Allium chinense.
abstract: Two new furostanol saponins, named chinenosides II and III, were isolated along with seven known compounds, from the bulbs of Allium chinese G. Don by a combination of silica gel, Diaion HP-20, and octadecylsilanized (ODS) silica gel column chromatographies and preparative HPLC. On the basis of chemical and spectroscopic evidence, the structures of chinenosides II and III were determined to be 26-O-beta-glucopyranosyl 3 beta,26-dihydroxy-(25R)-5 alpha-furost-20(22)-en-6-one 3-O-beta-xylopyranosyl-(1 --> 4)-[alpha-arbinopyranosyl(1 --> 6) ]-beta-glucopyranoside and 26-O-beta-glucopyranosyl 3 beta,26-dihydroxy-(25R)-5 alpha-furost-20 (22)-en-6-one 3-O-alpha-arabinopyranosyl (1 --> 6)-beta-glucopyranoside, respectively.
authors.affiliation: Department of Natural Products, Shengyang Pharmaceutical University, Shenhe District, China.
authors.forename: J P
authors.initials: JP
authors.lastname: Peng
authors.forename: X S
authors.initials: XS
authors.lastname: Yao
authors.forename: Y
authors.initials: Y
authors.lastname: Tezuka
authors.forename: T
authors.initials: T
authors.lastname: Kikuchi
mesh_terms: D000490:Allium; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002851:Chromatography, High Pressure Liquid; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D018517:Plant Roots; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D013256:Steroids
chemical_list: D012503:Saponins; D013256:Steroids; C098274:chinenoside II; C098275:chinenoside III