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