Using O=C1CC(c2nc(I)c3c(Cl)nccn23)C1, CC(=O)N1CCNCC1 to produce CC(=O)N1CCN(C2CC(c3nc(I)c4c(Cl)nccn34)C2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.