Using CC(=O)n1cc2c3c(ccc(Cl)c31)C(=O)C(N=[N+]=[N-])C2 to produce CC(=O)n1cc2c3c(ccc(Cl)c31)C(=O)C(N)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.