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