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