Using COc1cc(B(O)O)ccc1OCc1ccccc1, [O-][n+]1c(-c2cccc(Br)c2)cccc1C(F)(F)F to produce COc1cc(-c2cccc(-c3cccc(C(F)(F)F)[n+]3[O-])c2)ccc1OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.