反应详情

To 4-chloro-N-(3-chlorophenyl)pyrimidin-2-amine (0.2 g, 0.837 mmol) in THF (10 mL) is added DIPEA (0.29 mL, 1.67 mmol) followed by 3-(4-(methylsulfonyl)piperazin-1-yl)propan-1-amine, 25, (0.0.369 g, 1.67 mmol). The resulting mixture is refluxed for 12 hours after which the reaction mixture is cooled to room temperature and the solvent removed in vacuo. To the resulting residue is added water (50 mL) and the solution is washed with EtOAc (3×100 mL). The combined organic layers are dried (MgSO4) and concentrated in vacuo. The residue which is obtained is purified over silica (10% MeOH in CH2Cl2) to afford 0.129 g (50% yield) of the desired compound. 1H NMR (DMSO-d6, 300 MHz) δ1.71 (m, 2H), 2.39-2.45 (m, 6H), 2.84 (s, 3H), 3.08 (m, 4H), 3.38 (m, 2H), 5.96 (d, J=5.7 Hz, 1H), 6.87 (d, J=7.8 Hz, 1H), 7.18-7.27 (m, 2H), 7.58 (d, J=7.5 Hz, 1H), 7.81 (bs, 1H), 8.12 (bs, 1H), 9.18 (s, 1H). MS (ESI, pos. ion) m/z: 425 (M+1). HRMS calcd for C18H25ClN6O2S, 425.1526 m/z (M+H)+; observed 425.1512 m/z.

1. temperatureThe resulting mixture is refluxed for 12 hours after which the reaction mixture
2. customthe solvent removed in vacuo
3. additionTo the resulting residue is added water (50 mL)
4. washthe solution is washed with EtOAc (3×100 mL)
5. dry with materialThe combined organic layers are dried (MgSO4)
6. concentrationconcentrated in vacuo
7. customThe residue which is obtained
8. customis purified over silica (10% MeOH in CH2Cl2)