反应详情

温度

40 °C

3-(6-Fluoro-1,3-benzoxazol-2-yl)pyrazin-2-amine (300 mg) was dissolved into DMF (15 ml) at 50° C. N-bromosuccimide (325 mg) was added. The mixture was stirred at 40° C. for 2 hours. The resulting mixture was diluted with ethyl acetate (15 ml), and washed with brine (10 ml×3). The organic layer was dried and concentrated to give 5-bromo-3-(6-fluoro-1,3-benzoxazol-2-yl)pyrazin-2-amine, which was used in the next reaction without further purification.

1. washwashed with brine (10 ml×3)
2. customThe organic layer was dried
3. concentrationconcentrated