title: Saponins from the processed rhizomes of Polygonatum kingianum.
abstract: Two new spirostanol saponins, named kingianoside H (1) and kingianoside I (2), were isolated from the processed rhizomes of Polygonatum kingianum, along with a known triterpenoid saponin ginsenoside-Rc (3), four known spirostanol saponins Tg (4), (5), polygonatoside C(1) (6) and ophiopogonin C' (7). The structures of the new compounds were elucidated by detailed spectroscopic analyses, including 1D and 2D NMR techniques and chemical methods. Compounds 3 and 5 were first reported from the genus Polygonatum. Compounds 4, 6 and 7 are reported for the first time from the processed Polygonatum kingianum.
authors.affiliation: Beijing Institute of Radiation Medicine, China.
authors.forename: He-Shui
authors.initials: HS
authors.lastname: Yu
authors.forename: Bai-Ping
authors.initials: BP
authors.lastname: Ma
authors.forename: Li-Ping
authors.initials: LP
authors.lastname: Kang
authors.forename: Tao
authors.initials: T
authors.lastname: Zhang
authors.forename: Feng-Juan
authors.initials: FJ
authors.lastname: Jiang
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.forename: Peng
authors.initials: P
authors.lastname: Zou
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhao
authors.forename: Cheng-Qi
authors.initials: CQ
authors.lastname: Xiong
authors.forename: Da-Wei
authors.initials: DW
authors.lastname: Tan
authors.forename: Xin-Bo
authors.initials: XB
authors.lastname: Song
authors.forename: Kate
authors.initials: K
authors.lastname: Yu
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D031384:Polygonatum / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D012503:Saponins / Q000138:chemical synthesis / Q000737:chemistry*; D013150:Spirostans / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D012503:Saponins; D013150:Spirostans; C545331:kingianoside H; C545332:kingianoside I