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