反应详情

To a stirred solution of 5,7-difluoro-3-methyl-N-(5-morpholinopyridin-3-yl)-2-(pyridin-2-yl)quinolin-4-amine (0.06 g, 0.14 mmol) in N,N-dimethylformamide (1.4 mL) was added sodium hydride (0.011 g, 0.28 mmol) followed by iodoethane (0.043 g, 0.28 mmol). Stirring continued at 60° C. for 2 h. After which the reaction was quenched with water (25 mL). The mixture was extracted with EtOAc (2×10 mL) and DCM (1×10 mL). The organic layers were combined and washed with brine (1×20 mL) and dried over magnesium sulfate. The crude product was purified by column chromatography on basic alumina (0 to 50% EtOAc in hexane) to give the desired product N-ethyl-5,7-difluoro-3-methyl-N-(5-(4-morpholinyl)-3-pyridinyl)-2-(2-pyridinyl)-4-quinolinamine. 1H NMR (400 MHz, CDCl3) δ ppm 8.74 (1H, d, J=4.7 Hz), 7.83-7.96 (2H, m), 7.74 (2H, m), 7.34-7.50 (2H, m), 7.26 (1H, br. s), 6.93-7.04 (1H, m), 6.31 (1H, br s), 3.77-3.94 (5H, m), 3.70 (1H, m), 3.10 (4H, br. s), 2.33-2.40 (3H, s), 1.29 (3H, t, J=7.2 Hz). Mass Spectrum (ESI) m/e=462.2 (M+1).

1. customAfter which the reaction was quenched with water (25 mL)
2. extractionThe mixture was extracted with EtOAc (2×10 mL) and DCM (1×10 mL)
3. washwashed with brine (1×20 mL)
4. dry with materialdried over magnesium sulfate
5. customThe crude product was purified by column chromatography on basic alumina (0 to 50% EtOAc in hexane)