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