Using CCC(C)C(=O)O, CCC(C)C(=O)c1ccc(-c2ccccc2)cc1 to produce CCC(C)C(=O)c1ccc(-c2ccc(O)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.