Using BrCc1ccccc1, CC(C)(C)c1ccccc1N1CCN(C(=O)C2CCC(=O)N2)CC1 to produce CC(C)(C)c1ccccc1N1CCN(C(=O)C2CCC(=O)N2Cc2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.