Using O=[N+]([O-])c1c[nH]c(Cl)n1, CC1(Cn2nc(-c3ccccc3)oc2=O)CO1 to produce CC1(Cn2nc(-c3ccccc3)oc2=O)Cn2cc([N+](=O)[O-])nc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.