Methyl 4-cyano-3-fluoro-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 3-cyano-4-fluoro-2-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 3-cyano-2-fluoro-4-(trifluoromethoxy)pyridine-6-carboxylate
2-Chloro-4-fluoro-5-(trifluoromethoxy)pyridine-3-carboxylic acid