Using O=C(Cl)OCc1cc(Cl)cc(Cl)c1, O=C(O)CC1CCNCC1 to produce O=C(O)CC1CCN(C(=O)OCc2cc(Cl)cc(Cl)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.