Using Nc1ccc2[nH]nc(Br)c2c1, CCCN1C2CCC1CC(=O)C2 to produce CCCN1C2CCC1CC(Nc1ccc3[nH]nc(Br)c3c1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.