Using CCOc1ccc(C(=O)OC)c2c3ccccc3n(Cc3ccccc3)c12 to produce CCOc1ccc(C(=O)O)c2c3ccccc3n(Cc3ccccc3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.