反应详情

1-(2-Methoxy-ethyl)-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid (723.0 mg) was prepared by following General Procedure E starting from 1-(2-methoxy-ethyl)-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid methyl ester (829.0 mg) and sodium hydroxide (2.0 N solution, 3.0 mL) MeOH (1.0 mL) and THF (3.0 mL). LCMS: m/z 454; and 1H NMR (DMSO-d6, 400 MHz): δ 8.14 (1H, s), 7.95 (1H, m), 7.84-7.82 (1H, m), 7.63 (1H, br. m), 7.51 (1H, m), 7.55-7.52 (1H, m), 7.39-7.36 (1H, m), 4.39-4.36 (2H, t), 3.74-3.71 (2H, t), 3.24 (3H, s), —COOH proton signal was not observed.