反应详情

To 4-chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidine (12.15 g, 72.5 mmol) in Dichloromethane (DCM) (200 mL) was added NBS (13.55 g, 76 mmol) portionwise, and the reaction mixture was stirred overnight at room temperature. The solvent was evaporated, and the solid was washed with water and dried to afford 5-bromo-4-chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidine (17 g) as an off-white solid.

1. customThe solvent was evaporated
2. washthe solid was washed with water
3. customdried