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