Using FC(F)(F)C(F)(F)I, CC1(C)C=Cc2cc(S)ccc2O1 to produce CC1(C)C=Cc2cc(SC(F)(F)C(F)(F)F)ccc2O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.