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