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