Using CCOC(=O)c1ccc(-c2ccc(C)cc2)cc1, CCOC(=O)c1cccc(-c2ccc(CBr)cc2)c1 to produce CCOC(=O)c1ccc(-c2ccc(CBr)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.