Ethyl 3-cyano-2-iodo-5-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 3-fluoro-5-nitro-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 3-cyano-2-nitro-5-(trifluoromethoxy)pyridine-4-acetate
Ethyl 6-cyano-2-iodo-4-(trifluoromethoxy)pyridine-3-carboxylate