Using CC(C)(C)OC(=O)N1CCc2c(/C=C/[N+](=O)[O-])c3ccccc3n2CC1 to produce O=[N+]([O-])/C=C/c1c2n(c3ccccc13)CCNCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.