Using NCCCN1CCN(C(c2ccccc2)c2ccc(Cl)cc2)CC1, O=C(Cl)c1ccccc1 to produce O=C(NCCCN1CCN(C(c2ccccc2)c2ccc(Cl)cc2)CC1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.