189747-29-3
5-amino-2-chloropyrimidine-4-carboxamide
→
189747-34-0
2,8-二氯-嘧啶[5,4-D]嘧啶
189747-31-7
6-氯嘧啶并[5,4-d]嘧啶-4(3H)-酮
59950-50-4
1-(5-氨基-2-氯嘧啶-4-基)-1-丁酮