Studies on constitutes from Taraxacum mongolicum.
- Author:
Wei YAO
1
;
Wen-Yan LIN
;
Chang-Xin ZHOU
;
Yu ZHAO
Author Information
- Publication Type:Journal Article
- MeSH: Chromatography, Gel; Flavonoids; chemistry; isolation & purification; Magnetic Resonance Spectroscopy; Mass Spectrometry; Plants, Medicinal; chemistry; Sterols; chemistry; isolation & purification; Taraxacum; chemistry; Triterpenes; chemistry; isolation & purification; Umbelliferones; chemistry; isolation & purification
- From: China Journal of Chinese Materia Medica 2007;32(10):926-929
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the chemical constituents of Taraxacum mongolicum.
METHODRepeated column chromatography over silica gel, C-18 and Sephadex LH-20 were used to isolate chemical constitutes and their structures were elucidated by spectroscopic methods MS, 1H-NMR, 13C-NMR including 2D-NMR techniques and by direct comparing spectral data with those reported in literatures.
RESULTEight compounds were identified as artemetin (1), quercetin (2), luteolin (3), luteolin-7-O-beta-D-glucopyranoside (4), caffeic acid (5), esculetin (6), stigmasterol (7), taraxasteryl acetate (8), respectively.
CONCLUSIONCompound 1 was obtained from this genus and compound 6, 8 from this species for the first time. Furthermore, the 13 carbon data of compound 6 from the literature were corrected with 2D-NMR techniques in this paper.
