Using CCOC(=O)c1cc(C(F)(F)F)cc(C(F)(F)F)c1, O=C1CCc2sccc21 to produce O=C(c1cc(C(F)(F)F)cc(C(F)(F)F)c1)C1Cc2sccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.