Using O=[N+]([O-])c1ccc2oc(-c3ccc(OC(F)(F)F)cc3)nc2c1 to produce Nc1ccc2oc(-c3ccc(OC(F)(F)F)cc3)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.