Using Oc1ccc(Oc2cc3ccc(Cl)cc3cn2)cc1, CCOC(=O)C(C)Br to produce CCOC(=O)C(C)Oc1ccc(Oc2cc3ccc(Cl)cc3cn2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.