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