Using CC(=O)COc1cc2nccc(Cl)c2cc1S(=O)(=O)C(C)(C)C to produce CC(O)COc1cc2nccc(Cl)c2cc1S(=O)(=O)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.