[Two flavone glycosides from Chinese traditional medicine Amomum villosum].
OBJECTIVE
To study the water soluble constituents from Amomum villosum.


METHODS
The constituents were separated and purified with chromatographic methods, identified by NMR, MS, UV and IR.


RESULTS
Two quercetin glycosides: quercitrin (quercetin-3-O-alpha-L-rhamnoside I) and isoquercitrin (quercetin-3-O-beta-D-glucoside II) were isolated and identified.


CONCLUSIONS
I and II were isolated for the first time from A. villosum.
Sun
Lan
L
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, China.
Yu
Jing-guang
JG
Zhou
Li-dong
LD
Luo
Xiu-zhen
XZ
Din
Wei
W
Yang
Shi-lin
SL
D035801:Amomum / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*
C016527:isoquercitrin; C012526:quercitrin; D011794:Quercetin