Using O=[N+]([O-])O, Cc1cc(C)n(-c2ccc(Cl)nn2)n1 to produce Cc1nn(-c2ccc(Cl)nn2)c(C)c1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.