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