Using Cc1c(N)c([N+](=O)[O-])cc2c1C(=O)N(CCN(C)C)C2=O to produce Cc1c(N)c(N)cc2c1C(=O)N(CCN(C)C)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.