反应详情

温度

70 °C

As illustrated in the scheme above, a solution of 7-chloro-5-(2,4-dimethoxy-5-pyrimidinyl)-1,3-dihydro-3-isothiocyanato-1-methyl-2H-1,4-benzodiazepin-2-one (0.069 g, 0.146 mmol) and N4,N4-diethyl-2-methyl-1,4benzenediamine (0.029 g, 0.161 mmol) in (CH2Cl)2 (5.0 mL) was heated at 70° C. for 16 h. The reaction was cooled and concentrated in vacuo, and the residue was purified by silica gel column chromatography (7:3 CH2Cl2:EtOAc) to provide the title compound as a light orange solid (0.074 g, 87%). 1H-NMR (CDCl3): δ 8.64 (s, 1H), 7.52 (dd, J=2.5 Hz, J=8.8 Hz, 1H), 7.40 (s, 1H), 7.35 (d, J=7.8 Hz, 1H), 7.32 (d, J=9.0 Hz, 1H), 7.20 (d, J=2.2 Hz, 1H), 7.17-7.13 (m, 1H), 6.54-6.51 (m, 2H), 6.06 (d, J=8.0 Hz, 1H), 4.05 (s, 3H), 3.74 (s, 3H), 3.42 (s, 3H), 3.40-3.27 (m, 4H), 2.30 (s, 3H), 1.17 (t, J=7.1 Hz, 6H). HRMS calculated for (C28H32ClN7O3S+H) (M+H)+: 582.2054. Found (ESI): 582.2076.

1. temperatureThe reaction was cooled
2. concentrationconcentrated in vacuo
3. customthe residue was purified by silica gel column chromatography (7:3 CH2Cl2:EtOAc)