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Studies on the Chemical Constituents of Inula Britannica

GENG Hong-mei(Chemistry Department of Hengshui University,Hengshui 053000,China)  
Objective To study the chemical constituents of Inula Britannica.Methods The n-butanol fractions of ethanol extract of Inula Britannica were isolated by chromatographic methods,their structures were elucidated on the basis partitioned and purified by means of several separation methods.The structures of these isolates were elucidated on the basis of physico-chemical property and spectral analysis.Results Eight compounds were purified and their structures were identified,they were identified as rutin(Ⅰ)、berberine(Ⅱ)、patulitrin(Ⅲ)、isoquercitrin(Ⅳ)、quercitrin(Ⅴ)、chlorogenic acid(Ⅵ)、quercetin(Ⅶ)and kaempferol(Ⅷ).Conclusion Compounds(Ⅰ)、(Ⅱ)、(Ⅴ)were obtained from this plant for the first time.
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