Using O=C(CC(=O)OCc1ccccc1)OCc1ccccc1, O=[N+]([O-])c1cc(C(F)(F)F)cnc1Cl to produce O=C(OCc1ccccc1)C(C(=O)OCc1ccccc1)c1ncc(C(F)(F)F)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.