Using FC(F)(F)I, Cn1nc(-c2c(Cl)cc(C(F)(F)F)cc2Cl)cc1S to produce Cn1nc(-c2c(Cl)cc(C(F)(F)F)cc2Cl)cc1SC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.