Using CC(C)(O)c1ccc2cc(C(=O)O)ccc2c1, CC(C)(OO)c1ccc2cc(C(=O)O)ccc2c1 to produce O=C(O)c1ccc2cc(O)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.