Using CC(C)(C)OC(=O)Nc1cccc(CBr)c1, O=[N+]([O-])c1cc[nH]n1 to produce CC(C)(C)OC(=O)Nc1cccc(Cn2ccc([N+](=O)[O-])n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.