Platycoside N: a new oleanane-type triterpenoid saponin from the roots of Platycodon grandiflorum.
A new oleanane-type triterpenoid saponin, named platycoside N (1), together with six known saponins, was isolated from the roots of Platycodon grandiflorum. On the basis of acid hydrolysis, comprehensive spectroscopic data analyses and comparison with the spectral data of the known compounds, its structure was elucidated as 3-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl-2β,3β,16α,23-tetrahydroxyolean-12-en-28-oic acid 28-O-β-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranoside. The six known compounds were platycodin D (2), deapioplatycodin D (3), platycodin D3 (4), deapioplatycodin D3 (5), platycoside E (6) and deapioplatycoside E (7).
College of Chinese Material Medicine, Jilin Agricultural University, Changchun 130118, China. liwei7727@126.com
Wei
W
Li
Wei
W
Zhang
Lan
L
Xiang
Zi
Z
Wang
Yi-Nan
YN
Zheng
Ying-Ping
YP
Wang
Jing
J
Zhang
Li
L
Chen
D006868:Hydrolysis; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry*; D031238:Platycodon / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification*
D012503:Saponins