Riluzole → 3-Methyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-3H-imidazo[4,5-b]pyridine-6-carboxylic acid ethyl ester

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3-Methyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-3H-imidazo[4,5-b]pyridine-6-carboxylic acid ethyl ester (560 mg) was prepared by following General Procedure D starting from 5-amino-6-methylamino-nicotinic acid ethyl ester (723 mg), 2-amino-6-(trifluoromethoxy)benzothiazole (735 mg), 1,1′-thiocarbonyldiimidazole (802 mg), and EDC (969 mg). LC/MS: m/z 437.8. 1H NMR (DMSO-d6, 400 MHz): δ 12.44 (s, 1H), 7.94 (s, 1H), 7.89 (s, 1H), 7.74 (s, 1H), 7.52 (d, 1H), 7.37 (d, 1H), 4.33 (q, 2H), 3.65 (s, 3H), 1.36 (t, 3H).

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