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