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