Using COC(=O)C1CCN(c2cc(NCCc3ccc(Cl)cc3Cl)nc(OC)n2)CC1 to produce COc1nc(NCCc2ccc(Cl)cc2Cl)cc(N2CCC(C(=O)O)CC2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.