Using O=[N+]([O-])c1ccc(F)c(F)c1, CCc1ccc(O)cc1C1C(=O)C(C)(C)OC(C)(C)C1=O to produce CCc1ccc(Oc2ccc([N+](=O)[O-])cc2F)cc1C1C(=O)C(C)(C)OC(C)(C)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.