反应详情

4-(6-Chloro-pyrimidin-4-yloxy)-phenylamine (331 mg, 1.50 mmol) is dissolved in DMF (3 mL) under an argon atmosphere at rt. Pyridine (133.2 μL, 1.65 mmol) is added dropwise followed by dropwise addition of p-tolylisocyanate (221 μL, 1.80 mmol). The reaction Is stirred for 30 min at rt. The solvent is removed in vacuo and the residual crude product is titurated with ethyl acetate/hexanes 9:1 to give the title compound as a white powder: m.p.=217-219° C.; C18H15N4O2Cl: M+=355.1; 1H-NMR (DMSO-d6): 8.78 (s, 1H), 8.61 (s, 1H), 8.59 (s, 1H, HN), 7.52 (d, 2H), 7.37 (d, 2H), 7.17 (d, 2H), 7.05 (d, 2H), 2.21 (s, 3H).

1. customThe solvent is removed in vacuo