Using CCOC(=O)c1ccc(C#N)c(N[C@H]2CC[C@H](N)CC2)c1, BrCCCCCBr to produce CCOC(=O)c1ccc(C#N)c(N[C@H]2CC[C@H](N3CCCCC3)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.