反应详情

To a mixture of 5-[N-(cyclopentylmethyl)-N-ethylamino]-1-methyl-1H-pyrrolo[3,2-b]pyridine-6-carbonitrile (105 mg, 0.37 mmol) in DMF (2 mL) is added N-bromosuccinimide (NBS, 66 mg, 0.37 mmol) at 0° C. After stirring for 30 min, H2O is added, and the reaction mixture is extracted with EtOAc. The organic layer is dried over sodium sulfate, concentrated and purified by silica-gel column chromatography to give 3-bromo-5-[N-(cyclopentylmethyl)-N-ethylamino]-1-methyl-1H-pyrrolo[3,2-b]pyridine-6-carbonitrile as a yellow solid.

1. extractionthe reaction mixture is extracted with EtOAc
2. dry with materialThe organic layer is dried over sodium sulfate
3. concentrationconcentrated
4. custompurified by silica-gel column chromatography