Using O=C1CC2OC(CSCc3ccccc3)CN12, O=C(OO)c1cccc(Cl)c1 to produce O=C1CC2OC(CS(=O)Cc3ccccc3)CN12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.