Using Cn1nc(Oc2ccc(N)c(N)c2)cc1C(F)(F)F, O=N[O-] to produce Cn1nc(Oc2ccc3nn[nH]c3c2)cc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.