Methyl 5-cyano-2-hydroxy-3-(trifluoromethoxy)pyridine-6-acetate
5-Cyano-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid
Methyl 4-cyano-2-hydroxy-6-(trifluoromethoxy)pyridine-3-acetate
Methyl 2-fluoro-3-methyl-5-(trifluoromethoxy)pyridine-4-acetate