Methyl 5-fluoro-2-hydroxy-3-(trifluoromethoxy)pyridine-6-acetate
Methyl 4-fluoro-3-hydroxy-6-(trifluoromethoxy)pyridine-2-acetate
Methyl 3-cyano-2-hydroxy-6-(trifluoromethoxy)pyridine-5-acetate
2-(Chloromethyl)-6-fluoro-3-hydroxy-5-(trifluoromethoxy)pyridine