Using [N-]=[N+]=[N-], CCCCc1cc2c(=O)n3cc(C#N)ccc3nc2s1 to produce CCCCc1cc2c(=O)n3cc(-c4nnn[nH]4)ccc3nc2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.