Using CC(C)(C)OC(=O)N1CC[C@H](Nc2ccc(Br)cc2[N+](=O)[O-])[C@@H](O)C1 to produce O=[N+]([O-])c1cc(Br)ccc1N[C@H]1CCNC[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.