Using CC(O)=S, FC(F)(F)c1cc(CBr)cc(C(F)(F)F)c1 to produce CC(=S)OCc1cc(C(F)(F)F)cc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.