Using CC(C)(C)OC(=O)Nc1ccc(O)cc1, Nc1cc(Br)cnc1[N+](=O)[O-] to produce CC(C)(C)OC(=O)Nc1ccc(Oc2cnc([N+](=O)[O-])c(N)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.