Using O=C(O)CN1C(=O)C(=O)N(Cc2cccc([N+](=O)[O-])c2)C1=S, O=C([O-])CN1CC(=O)NC1=O to produce O=C(O)CN1CC(=O)N(Cc2cccc([N+](=O)[O-])c2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.