反应详情

温度

50 °C

To a solution of 4-{[4-chloro-3-(trifluoromethyl)benzyl]amino}-6-nitroquinazoline-8-carboxylic acid (40 mg, 0.09 mmol) in 1 mL of anhydrous DMSO, CDI (22 mg, 0.14 mmol, 1.5 equiv.) was added. The resulting mixture was stirred at 50° C. for 3 h. After cooling down to rt, NH4Cl (11 mg, 0.14 mmol, 1.5 equiv.) was added. The reaction mixture was stirred at it overnight. The reaction mixture was poured into water. The yellow precipitate was collected as the desired product by filtration, followed by washed with water in 96% yield. 1HNMR (in DMSO): 4.90 (d, J=5.5 Hz, 2H), 7.66-7.72 (m, 2H), 7.93 (s, 1H), 8.19 (d, J=3.3 Hz, 1H), 8.72 (s, 1H), 9.17 (d, J=2.6 Hz, 1H), 9.53 (d, J=2.6 Hz, 1H), 9.87 (t, J=5.8 Hz, 1H), 10.22 (d, J=3.3 Hz, 1H). Mass: M+H+: 426.

1. temperatureAfter cooling down to rt
2. stirringThe reaction mixture was stirred at it overnight
3. filtrationThe yellow precipitate was collected as the desired product by filtration
4. washby washed with water in 96% yield