Using COc1ccc(/C=C/C(=O)Nc2cccc3ccccc23)cc1OC(C)=O to produce COc1ccc(/C=C/C(=O)Nc2cccc3ccccc23)cc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.