Using O=CCCC(=O)C1=C(O)C2(CCOCC2)c2ccc(Cl)cc2C1=O, O=S([O-])OO to produce O=C(O)CCC(=O)C1=C(O)C2(CCOCC2)c2ccc(Cl)cc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.