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