[4,3-d]pyrimidine

284028-90-6

284028-90-6

288424

3,5,7,8-四氢-2-甲基-4H-硫代吡喃并[4,3-D]嘧啶-4-酮

13877-55-9

13877-55-9

298758

7-羟基吡唑并[4,3-D]嘧啶

869198-95-8

869198-95-8

311272

2-氨基-7,8-二氢吡啶并[4,3-D]嘧啶-6(5H)-羧酸叔丁酯

944901-59-1

944901-59-1

314024

2-氯-5,6,7,8-四氢吡啶并[4,3-D]嘧啶

16952-45-7

16952-45-7

710073

2-甲基吡啶并[4,3-D]嘧啶-4(3H)-酮

918898-11-0

918898-11-0

1975555

5,7-dichloro-1H-pyrido[4,3-d]pyrimidin-4-one