Saponins from the processed rhizomes of Polygonatum kingianum.
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.
Yu
He-Shui
HS
Beijing Institute of Radiation Medicine, China.
Ma
Bai-Ping
BP
Kang
Li-Ping
LP
Zhang
Tao
T
Jiang
Feng-Juan
FJ
Zhang
Jie
J
Zou
Peng
P
Zhao
Yang
Y
Xiong
Cheng-Qi
CQ
Tan
Da-Wei
DW
Song
Xin-Bo
XB
Yu
Kate
K
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
D012503:Saponins; D013150:Spirostans; C545331:kingianoside H; C545332:kingianoside I