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