4-(Chloromethyl)-5-(difluoromethyl)-3-methylpyridine-2-acetonitrile
4-(Chloromethyl)-3-(difluoromethyl)-5-methylpyridine-2-acetonitrile
4-(Chloromethyl)-3-(difluoromethyl)-2-methylpyridine-6-acetonitrile
4-(Chloromethyl)-3-(difluoromethyl)-2-methylpyridine-5-acetonitrile