Using OB(O)c1cc(F)cc(F)c1, CS(=O)(=O)c1ccc(C2=C(Br)C(=O)CC2)cc1 to produce CS(=O)(=O)c1ccc(C2=C(c3cc(F)cc(F)c3)C(=O)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.