5399-92-8
4-氯-1H-吡唑并[3,4-d]嘧啶
→
~99%
90914-41-3
3-溴-4-氯-1H-吡唑并[3,4-d]嘧啶
54738-73-7
3-溴-1,5-二氢-4H-吡唑并[3,4-D]嘧啶-4-酮