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