Using NC(N)=Nc1nc(-c2ccnc(CN3C(=O)c4ccccc4C3=O)c2)cs1 to produce NCc1cc(-c2csc(N=C(N)N)n2)ccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.