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