Using CC(C)(C)OC(=O)N1CCNCC1, N#Cc1ccc(Br)cc1[N+](=O)[O-] to produce CC(C)(C)OC(=O)N1CCN(c2ccc(C#N)c([N+](=O)[O-])c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.