Using CC(C)(C)OC(=O)Nc1cccc(N)c1, O=[N+]([O-])c1cccc(OCCBr)c1 to produce CC(C)(C)OC(=O)Nc1cccc(NCCOc2cccc([N+](=O)[O-])c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.