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