Using CC(=O)Nc1ccc(S(F)(F)(F)(F)F)cc1[N+](=O)[O-] to produce Nc1ccc(S(F)(F)(F)(F)F)cc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.