Using CSC1C(=O)Nc2c([N+](=O)[O-])cc([N+](=O)[O-])c(-c3ccccc3)c21 to produce Nc1cc(N)c(-c2ccccc2)c2c1NC(=O)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.