反应详情

N,N,N′,N′-Tetramethyl-O-(7-azabenzotriazol-1-yl)uronium hexafluorophosphate (HATU) (0.072 g, 0.19 mmol) and 1-ethyl-3-(4-fluorophenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid (0.053 g, 0.19 mmol) in N,N-dimethylformamide (2 mL) was added N,N-diisopropylethylamine (0.055 mL, 0.32 mmol). After 15 min stirring at rt, 4-(6,7-dimethoxyquinolin-4-yloxy)-3-fluorophenylamine (0.05 g, 0.2 mmol) was added. The reaction was stirred at rt for 12 h, diluted with EtOAc (25 mL), then washed with 1N Na2CO3, water and brine and then dried over MgSO4. The product was crystallized from MeOH to give 75 mg (68%) as a white solid. mp=151-4° C.; LCMS m/z=575 (M+1); 1H NMR (DMSO) δ: 11.04 (s, 1H), 8.89 (s, 1H), 8.47 (d, 1H, J=5.4 Hz), 7.98, 8.01 (dd, 1H, J=2.3, 12.6 Hz), 7.52-7.56 (m, 2H), 7.33-7.46 (m, 6H), 6.47 (d, 1H, J=5.4 Hz), 4.01 (q, 2H, J=7 Hz), 3.98 (d, 6H), 13.0 (t, 3H, J=7 Hz).

1. stirringThe reaction was stirred at rt for 12 h
2. washwashed with 1N Na2CO3, water and brine
3. dry with materialdried over MgSO4
4. customThe product was crystallized from MeOH
5. customto give 75 mg (68%) as a white solid