反应详情

A mixture of 2-(2-chloro-5-{[(tert-butoxycarbonyl)-amino]-methyl}-phenylamino)-6-(2,2-difluoro-ethoxy)-1-methyl-1H-benzimidazole-5-carboxylic acid (1.12 g; 2.19 mmol), HBTU (831 mg; 2.19 mmol) and TEA (433 mg; 4.38 mmol) in DMF (10 mL) was stirred for 30 min at rt and thereafter added to a solution of 4-bromoaniline (377 mg; 2.19 mmol) in DMF (10 mL). The resulting mixture was stirred over night at rt, poured into brine and extracted with EtOAc. The organic extracts were dried over Na2SO4, filtered and concentrated. The residue was purified by column chromatography to give the sub-title compound. Yield: 1.35 g (93%).

1. stirringThe resulting mixture was stirred over night at rt
2. extractionextracted with EtOAc
3. dry with materialThe organic extracts were dried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated
6. customThe residue was purified by column chromatography