反应详情

1-Ethyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzo-imidazole-5-carboxylic acid (2-ethoxy-ethyl)-amide (60.0 mg) was prepared by following General Procedure F starting from 1-ethyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid (100.0 mg), 2-ethoxy-ethylamine (30.0 mg), DPPA (85.0 mg), and DIEA (0.1 mL) in DMF (1.0 mL). LCMS: m/z 495; and 1H NMR (CD3OD, 400 MHz): δ 7.96 (1H, d), 7.77-7.75 (2H, m), 7.65 (1H, d), 7.43-7.41 (1H, m), 7.26-7.24 (1H, m), 4.27-4.26 (2H, q), 3.66-3.64 (2H, m), 3.59-3.55 (4H, m), 1.43-1.39 (3H, t), 1.23-1.20 (3H, t), 2 —NH proton signals were not observed.