Using Fc1cc(C(F)(F)F)cnc1Sc1ccccc1, O=C(O)C(F)(F)F to produce O=S(c1ccccc1)c1ncc(C(F)(F)F)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.