Studies On Chemical Constituents Of Effective Parts Of Anti-Inflammation And Analgesia In Urtica Angustifolia Fisch. Ex Hornem

Urtica angustifolia Fisch ex Hornem,which belongs to Urticaceae,Urtica,is the main source of Nettle.It has the effect of dispelling wind and removing obstruction in the meridians,calming the liver and arresting convulsion,removing food retention and relaxing the bowels and deintoxication etc.Overseas researchers have done a lot of research on the nettle which produced in Europe,and internal research on nettle have been seen to increase day by day.U.angustifolia Fisch ex Hornem was extensively spread.It has strong bionergy,and high value of medicine and economy. So far,the research on U.angustifolia Fisch ex Hornem was restricted at the content analyses of minor element.So we focused on its chemical constituents.The solution method and chromatography have been used in this experiment, ten compounds have been isolated form this plant's 95%EtOH extraction.By using physical and chemical methods and spectrum technology(¹H-NMR,¹³C-NMR,MS et al.),we have identified the chemical structure of five compounds.They are isorhamnetin,quercetin- 3-O-β-D-glucopyranoside,trans-4-Hydroxycinnamic acid, Kaempferol-3-O-β-D-glucoside and daucosterol,and they are first isolated from Urtica angustifolia Fisch ex Hornem.The other compounds's chemical structures are being identified.This experiment will ground the next chemical and pharmacological research on its result.And it will provide the researching foundation for developing research of Urtica angustifolia Fisch ex Hornem.