Using O=[N+]([O-])c1ccc(F)cc1, COc1cc(C=C(C(=O)O)c2ccc(O)cc2)cc(OC)c1 to produce COc1cc(C=C(C(=O)O)c2ccc(Oc3ccc([N+](=O)[O-])cc3)cc2)cc(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.