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