反应详情

To a solution of ethyl 1-(2-benzyloxyethyl)-3-cyclohexyl-1H-pyrrolo[2,3-b]pyridine-6-carboxylate (888 mg, 2.18 mmol) in carbon tetrachloride (20 ml) was added N-bromosuccinimide (505 mg, 2.84 mmol), and the mixture was heated under reflux for 12 hr. The mixture was allowed to cool to room temperature, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel chromatography (hexane:ethyl acetate=6:1) to give ethyl 1-(2-benzyloxyethyl)-2-bromo-3-cyclohexyl-1H-pyrrolo[2,3-b]pyridine-6-carboxylate (592 mg, yield 56%).

1. temperaturethe mixture was heated
2. temperatureunder reflux for 12 hr
3. customthe solvent was evaporated under reduced pressure
4. customThe residue was purified by silica gel chromatography (hexane:ethyl acetate=6:1)