Using O=Cc1ccc(Br)o1, OB(O)c1cc(C(F)(F)F)cc(C(F)(F)F)c1 to produce O=Cc1ccc(-c2cc(C(F)(F)F)cc(C(F)(F)F)c2)o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.