反应详情

To solution of 4-methylamino-1H-pyrrolo[2,3-b]pyridine-5-carbaldehyde (0.5 g, 2.86 mmol) in DMF is added Na2CO3 (900 mg, 8.6 mmol) and benzyl bromide (0.5 ml, 4.3 mmol). The reaction is stirred at room temperature for 12 hours. The reaction mixture is partitioned in 100 ml water and 100 ml ethyl acetate, extracted with ethyl acetate three times. The organic phase is combined and washed with brine, dried over Na2SO4. The crude product is purified by silica gel flash chromatography, eluted with 5% methanol in ethyl acetate to give the title compound as yellow solid. 1H NMR 400 MHz (DMSO-d6) δ 9.70 (s, 1H), 9.20 (q, 1H, J=5.2 Hz), 8.59 (s, 1H), 7.46 (m, 2H), 7.35 (m, 3H), 7.28 (d, 1H, J=2.8 Hz), 7.22 (d, 1H, J=2.4 Hz), 5.65 (s, 2H), 3.31 (d, 2H, J=2.4 Hz). MS m/z 266.2 (M+1).

1. customThe reaction mixture is partitioned in 100 ml water
2. extraction100 ml ethyl acetate, extracted with ethyl acetate three times
3. washwashed with brine
4. dry with materialdried over Na2SO4
5. customThe crude product is purified by silica gel flash chromatography
6. washeluted with 5% methanol in ethyl acetate