Using Cc1c(C(F)(F)F)c(=O)c(N)nn1-c1ccccc1, O=N[O-] to produce Cc1c(C(F)(F)F)c(=O)c(O)nn1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.