Using CC(=O)Nc1cc2c(cc1[N+](=O)[O-])OC(C)(C)C1OC21 to produce CC1(C)Oc2cc([N+](=O)[O-])c(N)cc2C2OC21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.