Using CSc1nc2ccc(Cn3cnc4cc(C#N)ccc43)cc2s1, [N-]=[N+]=[N-] to produce CSc1nc2ccc(Cn3cnc4cc(-c5nn[nH]n5)ccc43)cc2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.