Ethyl 2-(chloromethyl)-5-cyano-6-(trifluoromethoxy)pyridine-3-acetate
Ethyl 4-fluoro-2-iodo-3-(trifluoromethoxy)pyridine-6-acetate
Ethyl 6-(chloromethyl)-4-cyano-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 3-fluoro-5-iodo-6-(trifluoromethoxy)pyridine-2-acetate