Using CSc1ccc2c(c1)C(=O)N(c1cc([N+](=O)[O-])ccc1C)C2=O to produce CSc1ccc2c(c1)C(=O)N(c1cc(N)ccc1C)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.