4-(4-Boc-1-哌嗪)-5-溴-7H-吡咯并[2,3-d]嘧啶

4-chloro-5-methylsulfanyl-7H-pyrrolo[2,3-d]pyrimidine

5-溴杀结核菌素

7-苯磺酰基-5-溴-4-氯-7H-吡咯并[2,3-d]嘧啶

4-氯-5-氟-7H-吡咯并[2,3-D]-嘧啶