Flavonoid glycosides from Thalictrum przewalskii.
A new flavonoid glycoside, 5,7-dihydroxy-4'-methoxyflavone-7-O-[6-O-(4-O-acetyl-alpha-L-rhamnosyl)-3-O-beta-D-glucosyl]-6-O-acetyl-beta-D-glucoside and three known flavonoid glycosides, 5,7-dihydroxy-4-methoxyflavone-7-0-[6-0-(4-0-acetyl-alpha-L-rhamnosyl)]-beta-D-glucoside, 3,5,7, 4'-tetrahydroxyflavonol-3-O-beta-D-glucoside and 5,7-dihydroxy-4'-methoxyflavone-7-O-(6-O-alphaL-rhamnosyl)-beta-D-glucoside were isolated from the whole plant of Thalictrum przewalskii. Their structures were determined on the basis of spectroscopic evidences.
Yu
S C
SC
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Dongbei Wang Hasidian District, Beijing, PR China. shichunyu@hotmail.com
Wu
Q L
QL
Wang
L W
LW
Yang
J S
JS
Xiao
P G
PG
D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry*
D005419:Flavonoids; D006027:Glycosides