Using CCOC(=O)CS, O=CC(=C(Cl)C(F)(F)F)c1ccccc1 to produce CCOC(=O)c1cc(-c2ccccc2)c(C(F)(F)F)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.