Using O=C(Cl)Cl, COc1ccccc1OCC(O)CN1CCC(NCCNc2ccc(Cl)cc2)CC1 to produce COc1ccccc1OCC(O)CN1CCC(N2CCN(c3ccc(Cl)cc3)C2=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.