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