4-methylsulfanyl-1-prop-2-ynylpyrazolo[3,4-d]pyrimidine

1-(羟基甲基)-2H-吡唑并[4,5-e]嘧啶-4-酮

1,5-bis(hydroxymethyl)pyrazolo[3,4-d]pyrimidin-4-one

2,5-dimethylpyrazolo[3,4-d]pyrimidin-4-one

1,5-dimethylpyrazolo[3,4-d]pyrimidin-4-one