Using CS(=O)(=O)c1ccc(F)c([N+](=O)[O-])c1, Oc1ccc(F)cc1F to produce CS(=O)(=O)c1ccc(Oc2ccc(F)cc2F)c([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.