3-Amino-2-nitro-4-(trifluoromethoxy)pyridine-5-sulfonamide
6-Amino-2-nitro-4-(trifluoromethoxy)pyridine-3-sulfonamide
4-Bromo-5-cyano-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
3-Amino-6-(chloromethyl)-4-(trifluoromethoxy)pyridine-2-carboxylic acid