反应详情

1-Ethyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid methylamide (50.0 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), methylamine (2.0 M solution in THF, 1 mL), DPPA (82.0 mg), and DIEA (0.1 mL) in DMF (1.0 mL). LCMS: m/z 437; and 1H NMR (CD3OD, 400 MHz): δ 7.93 (1H, d), 7.73-7.70 (2H, m), 7.64-7.63 (1H, d), 7.40-7.38 (1H, m), 7.25-7.22 (1H, m), 4.25-4.23 (2H, q), 2.95 (3H, s), 1.41-1.38 (3H, t), 2 —NH proton signals were not observed.