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