Using Oc1ccc(Cl)cc1, CC(C)(C)C(=O)C(Br)c1ccccc1 to produce CC(C)(C)C(=O)C(Oc1ccc(Cl)cc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.