Using CC(C)CC(C#N)NC(=O)C1CCCCC1NC(=O)c1cc2ccc(Cl)cc2[nH]1, ClCCCBr to produce CC(C)CC(C#N)NC(=O)C1CCCCC1NC(=O)c1cc2ccc(Cl)cc2n1CCCCl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.