Ethyl 4-fluoro-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetate
Ethyl 4-fluoro-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetate
Methyl 2-cyano-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetate
4-(Chloromethyl)-3-cyano-2-(trifluoromethoxy)pyridine-6-acetic acid