Using CCOC(=O)c1cc(F)ccc1S, O=[N+]([O-])c1ccccc1F to produce CCOC(=O)c1cc(F)ccc1Sc1ccccc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.