Using O=C(NCc1ccc(S(=O)(=O)N2CCC3(CC2)OCCO3)cc1)c1ccc(Cl)cc1 to produce O=C1CCN(S(=O)(=O)c2ccc(CNC(=O)c3ccc(Cl)cc3)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.