N2-Ethyl-3,4-dicyano-5-ethoxymethyleneaminopyrazole

N1-Ethyl-3,4-dicyano-5-ethoxymethyleneaminopyrazole

4-methylsulfanyl-2H-pyrazolo[3,4-d]pyrimidine-3-carbothioamide

4-amino-1-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrazolo[3,4-d]pyrimidine-3-carbothioamide