3-Cyano-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-carboxaldehyde
3-Cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-carboxaldehyde
3-Cyano-6-hydroxy-2-methyl-5-(trifluoromethoxy)pyridine
5-Cyano-2-hydroxy-3-methyl-6-(trifluoromethoxy)pyridine