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《Chinese Traditional and Herbal Drugs》 2015-15
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Chemical constituents in flowers of Polygonum cuspidatum

SUN Yin-shi;WANG Jian-hua;Institute of Special Animal and Plant Sciences,Chinese Academy of Agricultural Sciences;College of Agronomy,Shandong Agricultural University;  
Objective To investigate the chemical constituents in the flowers of Polygonum cuspidatum.Methods The components were separated by means of solvent extraction,repeated chromatography with silica and Sephadex LH-20 column.The structures were determined by spectral analysis and physicochemical properties.Results Sixteen compounds were isolated from the ethyl ether extract and methanol extract from the flowers of P.cuspidatum and identified as β-sitosterol(1),aloe-emodin(2),physcion(3),emodin(4),daucosterol(5),chrysophanol(6),luteolin(7),kaempferol(8),anthraglycoside B(9),rhein(10),apigenin(11),hesperetin(12),4-hydroxyacetophenone(13),rutin(14),sucrose(15),and genistein(16).Conclusion Compounds 2,8,12,13,15,and 16 are obtained from the flowers of P.cuspidatum for the first time.
【Fund】: 国家自然科学基金资助项目(31200261);; 山东省自然科学基金项目(ZR2012CQ029)
【CateGory Index】: R284.1
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