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