Using CC(=O)CCCCc1nc(C(=O)Cl)co1, [N-]=[N+]=[N-] to produce CC(=O)CCCCc1nc(C(=O)N=[N+]=[N-])co1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.