Using CCCCCn1cc(C(=O)c2cccc3ccccc23)c2cc(OC)ccc21 to produce CCCCCn1cc(C(=O)c2cccc3ccccc23)c2cc(O)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.