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