Using COC(=O)c1cc(C(F)(F)F)ccc1SCc1ccc(OC)cc1 to produce COc1ccc(-c2sc3ccc(C(F)(F)F)cc3c2O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.