反应详情

1-Methyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid (185 mg) was prepared by following General Procedure E starting from 1-methyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid methyl ester (200 mg) and lithium hydroxide (80 mg). LC/MS: m/z 409.9. 1H NMR (DMSO-d6, 400 MHz): δ 8.16 (s, 1H), 7.95 (s, 1H), 7.86 (d, 1H), 7.78-7.61 (m, 2H), 7.51 (d, 1H), 7.37 (d, 1H), 3.67 (s, 3H), —COOH proton signal was not observed.