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