Using O=C(O)c1cc([N+](=O)[O-])ccc1F, Sc1ccccc1Br to produce O=C(O)c1cc([N+](=O)[O-])ccc1Sc1ccccc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.