Using CC(=O)N1CCCC1c1ccc(NC(=O)c2cnccn2)cc1F, O=[N+]([O-])O to produce CC(=O)N1CCCC1c1cc([N+](=O)[O-])c(NC(=O)c2cnccn2)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.