Using [O-][I+3]([O-])([O-])[O-], CC(=O)Nc1cc(C(F)(F)F)ccc1SCC#N to produce CC(=O)Nc1cc(C(F)(F)F)ccc1S(=O)CC#N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.