Using COC(=O)C(CCN1CCN(S(C)(=O)=O)CC1)c1ccc(Cl)c(Cl)c1 to produce CS(=O)(=O)N1CCN(CCC(C(=O)O)c2ccc(Cl)c(Cl)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.