1-甲基-4-氯吡唑并[3,4-d]嘧啶

4-chloro-2-methylpyrazolo[3,4-d]pyrimidine

4-氯-1-(四氢-2H-吡喃-2-基)-1H-吡唑并[3,4-d]嘧啶

4-chloro-2-(tetrahydro-pyran-2-yl)-2H-pyrazolo[3,4-d]pyrimidine

4-ethylsulfanyl-1H-pyrazolo[3,4-d]pyrimidine