[Two new triterpenoid saponins from Lysimachia davurica].
OBJECTIVE
To study the triterpenoid saponins in the whole plant of Lysimachia davurica Ledeb.


METHODS
Column chromatography (including AB-8 macroporous resin, silica gel and ODS) was used to separate triterpenoid saponins whose structures were elucidated by ESI-MS, NMR (1D and 2D) and hydrolysis methods.


RESULTS
Two new triterpenoid saponins were isolated and established as 3beta, 16alpha, 28-trihydroxy-olean-12-en-3-0-(beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucuronopyranosyl)-28-0-beta-D-glucopyranoside) (I), 3beta, 16alpha, 28-trihydroxy-olean-12-en-3-O-(beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucuronopyranosyl)-28-0-beta-D-glucopyranoside) (II).


CONCLUSIONS
Compounds I and II are new compounds and named as davuricosides D and J.
Tian
Jing-kui
JK
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100094, China.
Zou
Zhong-mei
ZM
Xu
Li-zhen
LZ
Zhang
Hong-wu
HW
Mu
Hong-mei
HM
Yang
Shi-lin
SL
D008968:Molecular Conformation; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D029623:Primulaceae / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
D012503:Saponins; D014315:Triterpenes; C488570:davuricoside D; C488569:davuricoside J