Chemical constituents of Rannunculus chinensis Bunge

Objective To investigate the chemical constituents of Rannunculus chinensis Bunge..Methods The chemical constituents of R.chinensis were isolated by chromatography on silica gel and Sephadex LH-20.The structures of compounds were identified by phytochemical properties and spectral analysis(MS and NMR).Results Ten compounds were isolated and identified as quercetin(1),kaempferol(2),luteolin(3),quercitrin(4),protocatechuic acid(5),gallic acid(6),ellagic acid(7),kaempferol-3-O-β-rutinoside (8),β-sitosterol (9) and 7-ketologanin (10).Conclusion Compound 10 is isolated from R.chinensis for the first time.Compounds 1,2,3,4,5,6,7 and 8 are obtained from the title plant for the first time.