Using CC(C)(C)C(=O)n1ccc2cc(C(=O)OCc3ccccc3)ccc21 to produce CC(C)(C)C(=O)n1ccc2cc(C(=O)O)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.