6-(Chloromethyl)-3-cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine
2-(Bromomethyl)-3-cyano-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine
2-(Chloromethyl)-5-cyano-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine
3-(Chloromethyl)-4-cyano-6-(trifluoromethoxy)pyridine-2-acetonitrile