Using O=[N+]([O-])[O-], Fc1ccc(Br)c(C(F)(F)F)c1 to produce O=[N+]([O-])c1cc(F)cc(C(F)(F)F)c1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.