Drug for treating Parkinson disease

The Parkinson disease is called ''chronic cancer'' and is a common incurable disabling disease. At present, a main drug used in clinic is levodopa, namely, the content of dopamine in cells is increased by adopting an exogenous method to relieve the Parkinson disease, and serious side effects are generated, so that patients are painful. A novel drug for treating the Parkinson disease is invented; and the Parkinson disease is treated by dredging a dopamine functional molecule channel. Raw materials of the drug originate from plant extraction separation, an alkaloid compound is obtained through a two-step chemical reaction, and separation is performed by adopting a chiral separation column to obtain a chiral compound, so that the novel drug is prepared. A biological assay experiment proves that drug molecules can dredge the dopamine functional molecule channel, thereby facilitating more dopamine in a biosystem to exert normal function effects. A mouse experiment verifies that the drug has the effect of treating the Parkinson disease and is a safe and efficient drug.