Using O=[N+]([O-])c1ccc(F)cc1F, OCCc1cccc(C(F)(F)F)c1 to produce O=[N+]([O-])c1ccc(F)cc1OCCc1cccc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.