反应详情

温度

70 °C

After dissolving 6-cyano-4-(1H-indol-5-yloxy)-7-hydroxyquinoline (1.72 g, 5.7084 mmol) in N,N-dimethylformamide (20 ml), there were added potassium carbonate (0.87 g, 6.2792 mmol) and tert-butyl 4-bromomethylpiperidine-1-carboxylate (1.75 g, 6.2792 mmol), and the mixture was heated and stirred at 70° C. for 7 hours. After allowing it to cool to room temperature, water was added, extraction was performed with ethyl acetate and tetrahydrofuran, the extract was washed with saturated saline and dried over anhydrous magnesium sulfate and the solvent was distilled off under reduced pressure, after which the residue was adsorbed onto silica gel. Purification was performed by silica gel column chromatography (hexane/ethyl acetate system), and then ethyl acetate/ethanol/hexane was added to the obtained yellow oil to precipitate crystals. The crystals were filtered out, washed with hexane:ethanol=10:1 and dried by aspiration to obtain the title compound (1.786 g, 3.3852 mmol, 59.30%) as light yellow crystals.

1. temperaturethe mixture was heated
2. temperatureto cool to room temperature
3. extractionextraction
4. washthe extract was washed with saturated saline
5. dry with materialdried over anhydrous magnesium sulfate
6. distillationthe solvent was distilled off under reduced pressure
7. customPurification
8. additionethyl acetate/ethanol/hexane was added to the obtained yellow oil
9. customto precipitate crystals
10. filtrationThe crystals were filtered out
11. washwashed with hexane
12. dry with materialethanol=10:1 and dried by aspiration