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
3-Cyano-6-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-methanol