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