Using Oc1ccc(Br)cc1, CCOC(=O)c1cc(Cl)c2ccccc2n1 to produce CCOC(=O)c1cc(Oc2ccc(Br)cc2)c2ccccc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.