Flavonoids in leaves of Alstonia scholaris.
- Author:
Tingting HUI
1
;
Yun SUN
;
Liping ZHU
;
Wen GUO
;
Gaoxiong RAO
Author Information
- Publication Type:Journal Article
- MeSH: Alstonia; chemistry; Flavonoids; analysis; isolation & purification; Plant Leaves; chemistry
- From: China Journal of Chinese Materia Medica 2009;34(9):1111-1113
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the flavonoids in leaves of Alstonia scholaris, an ethno-remedy of Dai People in Yunnan.
METHODThe chemical constituents were isolated and purified by column chromatography. Their structures were elucidated on the basis of spectroscopic evidences and physicochemical properties.
RESULTEight flavonoids were isolated and identified as kaempferol (1), quercetin (2), isorhamnetin (3), kaempferol-3-0-beta-D-galactopyranoside (4), quercetin-3-0-beta-D-galactopyranoside (5), isorhamnetin-3-0-beta-D-galactopyranoside (6), kaempferol-3-0-beta-D-xylopyranosyl-( 2-1)-0-beta-D-galactopyranoside (7) ,quercetin-3-0-beta-D-xylopyranosyl-( 2-1)-0-beta-D-galactopyranoside (8).
CONCLUSIONFlavonoids 1-7 were isolated from A. scholaris for the first time.
