Studies on the chemical constituents of Knoxia corymbosa.
- Author:
Yu-bo WANG
1
;
Jing-feng ZHAO
;
Gan-peng LI
;
Jing-hua YANG
;
Liang LI
Author Information
- Publication Type:Journal Article
- MeSH: Glucosides; chemistry; isolation & purification; Molecular Conformation; Molecular Structure; Plants, Medicinal; chemistry; Quercetin; analogs & derivatives; chemistry; isolation & purification; Rubiaceae; chemistry
- From: Acta Pharmaceutica Sinica 2004;39(6):439-441
- CountryChina
- Language:Chinese
-
Abstract:
AIMTo study the chemical constituents of Knoxia corymbosa Willd.
METHODSChromatography was used to isolate and purify the chemical constituents, their structures were identified by spectral analysis.
RESULTSFour flavonol glycosides were identified as quercetin-7-O-alpha-L-arabinosyl-3-O-beta-D-6"-acetylglucopyranoside (1), kaempferol-7-O-alpha-L-arabinosyl-3-O-beta-D-glucopyranoside (2), quercetin-3-O-beta-D-glucopyranoside (3), quercetin-3-O-beta-D-6"-acetylglucopyranoside (4).
CONCLUSIONCompound 1 is a new flavonol glycoside. The other flavonol glycosides were isolated from Knoxia corymbosa Willd for the first time.
