反应详情

To a solution 2-phenethyl-9H-benzo[f]imidazo[1,2-d]pyrido[2,3-b][1,4]diazepine (0.374 g, 1 eq.) in THF (50 mL) was added N-bromosuccinimide (0.206 g, 1.05 eq.). The reaction was stirred at room temperature for 30 minutes, poured onto water (100 mL) and extracted with dichloromethane (2×100 mL). The organic extracts were combined, washed with brine (1×50 mL) and dried over sodium sulfate. After filtration and concentration under reduced pressure, the crude product, 3-bromo-2-phenethyl-9H-benzo[f]imidazo[1,2-d]pyrido[2,3-b][1,4]diazepine (0.197 g, 42%) was obtained as an orange solid. LCMS: 419 [M+H].

1. additionpoured onto water (100 mL)
2. extractionextracted with dichloromethane (2×100 mL)
3. washwashed with brine (1×50 mL)
4. dry with materialdried over sodium sulfate
5. filtrationAfter filtration and concentration under reduced pressure