Using O=C1NC(=O)c2c1c(-c1ccccc1[N+](=O)[O-])cc1[nH]c3ccccc3c21 to produce Nc1ccccc1-c1cc2[nH]c3ccccc3c2c2c1C(=O)NC2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.