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