Using COc1ccc(C=O)cc1, Nc1ncc(Cl)c(N2CCN(Cc3ccncc3)CC2)c1[N+](=O)[O-] to produce COc1ccc(-c2nc3c(N4CCN(Cc5ccncc5)CC4)c(Cl)cnc3[nH]2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.