Using CC(C)(C)OC(=O)N1C2C=C(c3ccc([N+](=O)[O-])cc3)CC1CC2 to produce O=[N+]([O-])c1ccc(C2=CC3CCC(C2)N3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.