103109-39-3
2,3-diamino-5-bromo-6-methyl-4(3H)-pyrimidinone
+
122-51-0
原甲酸三乙酯
→
32449-41-5
6-bromo-5-methyl-1H-[1,2,4]triazolo[1,5-a]pyrimidin-7-one