title: Furostanol saponins from the fresh rhizomes of Polygonatum kingianum.
abstract: Ten furostanol saponins were isolated as five pairs of 25R and 25S epimers from the fresh rhizomes of Polygonatum kingianum. Seven of them were identified as new compounds, (25S)-kingianoside D (2), (25S)-kingiano-side C (4), (25R,22)-hydroxylwattinoside C (5), kingianoside E (7), (25S)-kingianoside E (8), kingianoside F (9) and (25S)-kingianoside F (10), together with three known saponins, kingianoside C (1), kingianoside D (3), and 22-hydroxylwattinoside C (6). The structures of the new saponins were determinded by detailed analysis of their 1D and 2D NMR spectra, and by comparison of the spectral data with those reported.
authors.affiliation: Beijing Institute of Radiation Medicine; Beijing 100850, People's Republic of China.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.forename: Bai-Ping
authors.initials: BP
authors.lastname: Ma
authors.forename: Li-Ping
authors.initials: LP
authors.lastname: Kang
authors.forename: He-Shui
authors.initials: HS
authors.lastname: Yu
authors.forename: Yun
authors.initials: Y
authors.lastname: Yang
authors.forename: Xian-Zhong
authors.initials: XZ
authors.lastname: Yan
authors.forename: Fang-Ting
authors.initials: FT
authors.lastname: Dong
mesh_terms: D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D031384:Polygonatum / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D013237:Stereoisomerism; D013261:Sterols / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D012503:Saponins; D013261:Sterols