Research On Dracocehalum Tanguiticum Maxim Chemical Composition Of Ethyl Acetate Extract

China has rich resources in natural medicine, Tibetan medicine is one of them. Tibetan medicine has a long history, profound culture and unique effect, but not much current development and utilization. In the current global emphasis on the context of natural medicines, Tibetan medicine potential applications are being more and more attention, medical research is becoming one of the hot areas.Dracocephalum tanguticum Maxim., a well-known Tibetan medicine, belongs to the genus Dracocephalum in family Labiatae. Local people use it to cure various disorders such as clearing and removing dampness, disperse wind relieving, soothing liver and stomach, Liver heat, stomach heat, stop bleeding, the more sore, dry yellow water features. The main clinical use dizziness, hepatitis, gastritis, liver fever, stomach heat disease, yellow water disease, blood in the stool, arthritis, sores and other diseases carbuncle. Modern pharmacological studies show that Dracocephalum tanguticum Maxim. have antioxidant, anti-hepatitis and other pharmacological effects, but its chemical composition, in particular, reports of anti-hepatitis fewer active ingredients. This thesis research on the Dracocephalum tanguticum Maxim. of the ethyl acetate extract of the chemical composition of the separation, after repeated silica gel column chromatography, isolated from Dracocephalum tanguticum Maxim. four compounds, using physical and chemical properties and modern spectroscopic techniques (1H-NMR,13C -NMR) and other methods identified four compounds were: uvaol,betulin,oleanolic and ursolie acid. And use an in situ pretreatment-TLCS for separateation and determination of oleanolic acid and ursolic acid.This research for the final reveals the efficacy of Tibetan medicine Dracocephalum tanguticum Maxim. material basis for the establishment of a scientific evaluation of quality ingredients to achieve sustainable development and utilization of medicinal and Tibetan medicine to provide a scientific basis for new medicine development.