1-methyl-2H-pyrazolo[3,4-d]pyrimidine-4,6-dithione

1-methyl-6-phenylpyrazolo[3,4-d]pyrimidin-4-amine

2-[(4-amino-1-methylpyrazolo[3,4-d]pyrimidin-6-yl)amino]ethanol

4-氯-1,6-二甲基-1H-吡唑并[3,4-d]嘧啶

6-chloro-N,1-dimethyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine