Using N#Cc1nc(N=Nc2nc(C#N)c(C#N)[nH]2)[nH]c1C#N to produce N#Cc1nc(NNc2nc(C#N)c(C#N)[nH]2)[nH]c1C#N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.