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