Using CC(=O)c1ccccc1-c1ccc2[nH]c(/C=C/c3ccc(C(C)(C)C)cc3)nc2c1 to produce CC(O)c1ccccc1-c1ccc2[nH]c(/C=C/c3ccc(C(C)(C)C)cc3)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.