Using CN(C(=O)C(F)(F)F)c1ccc(Oc2ccnc(C#N)c2)cc1[N+](=O)[O-] to produce CNc1ccc(Oc2ccnc(C#N)c2)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.