Using C[C@@H](NC(=O)c1c([N+](=O)[O-])cccc1[N+](=O)[O-])C(=O)O, [F-] to produce C[C@@H](NC(=O)c1c(F)cccc1[N+](=O)[O-])C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.