Dihydroflavonol glycosides and flavan-3-ols from Bauhinia aurea.
- Author:
Xiao-Ya SHANG
1
;
Shuai LI
;
Su-Juan WANG
;
Yong-Chun YANG
;
Jian-Gong SHI
Author Information
- Publication Type:Journal Article
- MeSH: Bauhinia; chemistry; Catechin; analogs & derivatives; chemistry; isolation & purification; Chromatography, Gel; Drugs, Chinese Herbal; chemistry; isolation & purification; Flavonoids; chemistry; isolation & purification; Flavonols; chemistry; isolation & purification; Magnetic Resonance Spectroscopy; Mass Spectrometry; Plant Stems; chemistry; Plants, Medicinal; chemistry
- From: China Journal of Chinese Materia Medica 2007;32(9):815-818
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the chemical constituents of Bauhinia aurea.
METHODThe compounds were isolated by column chromatography over silica gel, reversed-phase RP-18, and Sephadex LH -20. MS and NMR spectroscopic methods were used to determine structures of purified compounds.
RESULTEight compounds were isolated from the ethyl acetate soluble fraction of the ethanolic extract and their structures were elucidated as isoengeletin (1), astilbin (2), neoastilbin (3), isoastilbin (4), neoisoastilbin (5), (+)-catechin (6), (-)-epicatechin (7) and (-)-epicatechin 3-O-gallate (8).
CONCLUSIONFive compounds were isolated from this genus for the first time except for 2, 6 and 8.
