Ethyl 4-cyano-2-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetate
Methyl 4-cyano-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-2-carboxylate
Ethyl 4-cyano-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-acetate
Methyl 2-fluoro-6-methoxy-3-(trifluoromethoxy)pyridine-4-carboxylate