Using COC(=O)c1ccc(O)cc1C(F)(F)F, O=[N+]([O-])O to produce COC(=O)c1cc([N+](=O)[O-])c(O)cc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.