反应详情

2.8 gm of 7,7-dimethyl-2-phenethyl-5-(2-chloro-ethyl)-5H,7H-imidazo[4,5-h]isoquinoline-4,6-dione were heated at 150° C. for 40 minutes with 5 ml of 2-(3,4-dimethoxy-phenyl)-ethylamine. After cooling, the mixture was dissolved in ether, and the solution was several times extracted with water weakly acidified with acetic acid. The organic phase was evaporated, and the residue was dissolved in acetone. The dihycrochloride was precipitated from the acetone solution with ethereal hydrochloric acid.

1. temperatureAfter cooling
2. extractionextracted with water
3. customThe organic phase was evaporated
4. dissolutionthe residue was dissolved in acetone
5. customThe dihycrochloride was precipitated from the acetone solution with ethereal hydrochloric acid