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