反应详情

(4-Chloro-phenyl)-(2-hydrazino-9-methyl-9H-purin-6-yl)amine (4.15 g, 14.3 mmol) and 2,4-pentanedione (2.0 mL, 19.1 mmol) in ethanol (100 mL) were heated to reflux for 20 min. Water was added and the white crystalline compound was collected by filtration, washed with water and dried to give (4-chloro-phenyl)-[2-(3,5-dimethyl-pyrazol-1-yl)-9-methyl-9H-purin-6-yl]-amine (4.25 g, 84%).

1. temperatureto reflux for 20 min
2. filtrationthe white crystalline compound was collected by filtration
3. washwashed with water
4. customdried