反应详情

Into a 30 mL vial, 7-(4-Methanesulfonyl-phenyl)-2-methylsulfanyl-pyrrolo[2,1-f][1,2,4]triazine (0.205 g, 0.000642 mol), Methanol (4 mL, 0.1 mol) and Tetrahydrofuran (9 mL, 0.1 mol) were added. N-Bromosuccinimide (0.137 g, 0.000770 mol) was added portion wise over 5 minutes. The reaction was stirred at room temperature over night. The solvent was removed under vacuum. The solid was partitioned with water and filtered to give a yellow solid. The solid was washed with cold methanol to give 5-Bromo-7-(4-methanesulfonyl-phenyl)-2-methylsulfanyl-pyrrolo[2,1-f][1,2,4]triazine as a yellow solid (140 mg, 55%). NMR 1H (DSMO-d6)-9.01 (s, 1H), 8.48 (d, 2H, J=8.48 Hz), 8.07 (d, 2H, J=8.53 Hz), 7.79 (s, 1H), 3.28 (s, 3H), 2.62 (s, 3H)

1. customThe solvent was removed under vacuum
2. customThe solid was partitioned with water
3. filtrationfiltered
4. customto give a yellow solid
5. washThe solid was washed with cold methanol