Using [O-][I+3]([O-])([O-])[O-], O=C(Nc1nccs1)C(SC1CCCC1)c1ccc(Cl)c(Cl)c1 to produce O=C(Nc1nccs1)C(c1ccc(Cl)c(Cl)c1)S(=O)C1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.