Using CNS(=O)(=O)c1ccccc1[N+](=O)[O-], FC(F)=C(F)F to produce CN(C(F)(F)C(F)F)S(=O)(=O)c1ccccc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.