Using Cc1ccc(Nc2cc(N3CCCCC3)nc(N3CCN(c4ccccn4)CC3)n2)cc1, O=C([O-])O to produce Cc1ccc(Nc2cc(N3CCCCC3)nc(N3CCN(c4cccc[n+]4[O-])CC3)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.