Using O=C1Nc2ccc(Cl)cc2CO1, COc1cc(N2CCN(C(=O)CCl)CC2)ccc1Cl to produce COc1cc(N2CCN(C(=O)CN3C(=O)OCc4cc(Cl)ccc43)CC2)ccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.