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