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