Using BrCc1ccccc1, CCC1(C)CC(NC(=O)c2ccccc2)C(C)C(C)(CC)N1 to produce CCC1(C)CC(NC(=O)c2ccccc2)C(C)C(C)(CC)N1Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.