2008•Shenyang Yaoke Daxue xuebaoRequires access
Chemical constituents of the aerial parts of Polygonum capitatum
Xian Li
Open publisher page 11 citations
Abstract
Objective To study the chemical constituents of the 70% ethanol extract of the aerial parts of Polygonum capitatum Buch-Ham ex D.Don.Methods The constituents were isolated by several chromatographic methods and identified by physico-chemical characters and spectroscopic analysis.Results Eleven compounds were isolated and identified as:quercetin(1),kaempferol(2),quercitrin(3),protocatechuic acid(4),gallic acid(5),protocatechuic acid ethyl ester(6),ethyl gallate(7),vanillic acid(8),1,5,7-trihydroxyl-3methylanthraquinone(9),succinic acid(10),5-hydroxymethylfuraldehyde (11).Conclusions Compounds 6,7,9 and 11 are isolated from this genus for the first time.