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