Using BrCc1ccc(Br)cc1, CC(C)(C)OC(=O)N1CCNC(=O)C1 to produce CC(C)(C)OC(=O)N1CCN(Cc2ccc(Br)cc2)C(=O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.