Using O=[N+]([O-])c1ccc(OC2CCN(Cc3ccc(C(O)(C(F)(F)F)C(F)(F)F)cc3)CC2)cc1 to produce Nc1ccc(OC2CCN(Cc3ccc(C(O)(C(F)(F)F)C(F)(F)F)cc3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.