[Chemical constituents of Viola tianshanica].
OBJECTIVE
To study the chemical constituents of Viola tianshanica.


METHODS
Compounds were isolated by silica column, pharmadex LH-20 column and polyamide column, and their structures were elucidated by UV, IR, ESI-MS and NMR.


RESULTS
Six compounds were isolated and identified as daucosterol (1), kaempferol-7-O-beta-D-glucopyranoside (2), kaempferol- 3-O-beta-D-glucopyranoside (3), isorhamnetin-3-O-beta-glucoside (4), kaempferol (5) and quercetin (6).


CONCLUSIONS
Compounds 2-5 were isolated from this plant for the first time.
Yu
Jiandong
J
National Institute for Control of Pharmaceutical and Biological Products, Beijing 100050, China.
Dai
Zhong
Z
Lin
Ruichao
R
D010936:Plant Extracts / Q000032:analysis*; D032413:Viola / Q000737:chemistry*
D010936:Plant Extracts