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