Using O=C(OO)c1cccc(Cl)c1, Cc1cc2nc(C)c(SCc3ccccc3N(C)C)nc2cc1C to produce Cc1cc2nc(C)c(S(=O)Cc3ccccc3N(C)C)nc2cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.