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