Using Nc1ccc([N+](=O)[O-])cc1N, O=C(O)c1ccccc1F to produce O=[N+]([O-])c1ccc2nc(-c3ccccc3F)[nH]c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.