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