Using C[S-], Nc1nc(OS(=O)(=O)C(F)(F)F)c([N+](=O)[O-])c(-c2ccco2)n1 to produce CSc1nc(N)nc(-c2ccco2)c1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.