Using CN1CCN(c2cccc3ccc(O)cc23)CC1, O=C(Cl)c1ccccc1 to produce CN1CCN(c2cccc3ccc(OC(=O)c4ccccc4)cc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.