反应详情

A mixture of 6-amino-5-bromo-2-(4-cyanophenyl)-N-methylbenzofuran-3-carboxamide (300 mg, 0.80 mmol) in DCM (2 mL) and pyridine (2 mL) was stirred at room temperature and MsCl (278 mg, 2.4 mmol) was added dropwise. The reaction was stirred at room temperature for 8 h. The reaction was washed with 1N HCl and extracted with DCM, dried with Na2SO4 and concentrated to give 5-bromo-2-(4-cyanophenyl)-N-methyl-6-(methylsulfonamido)benzofuran-3-carboxamide (260 mg, yield: 72%). MS (M+H)+: 448/450.

1. stirringThe reaction was stirred at room temperature for 8 h
2. washThe reaction was washed with 1N HCl
3. extractionextracted with DCM
4. dry with materialdried with Na2SO4
5. concentrationconcentrated