Using [F-], O=[N+]([O-])c1ccc(Cl)c(S(=O)(=O)Cl)c1 to produce O=[N+]([O-])c1ccc(Cl)c(S(=O)(=O)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.