Using Brc1ccc(-c2ccccc2)cc1, CC(C)CCCC(C)CC(=O)Cl to produce CC(C)CCCC(C)CCc1ccc(-c2ccc(Br)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.