Using O=S(=O)([O-])O[O-], O=C(Nc1ccc(Cl)cc1)c1cc(Cl)ccc1NC(=O)c1sc(CN2CCSCC2)cc1Cl to produce O=C(Nc1ccc(Cl)cc1)c1cc(Cl)ccc1NC(=O)c1sc(CN2CCS(=O)CC2)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.