5469-70-5
哒嗪-3-胺
+
70-23-5
3-溴丙酮酸乙酯
→
~13%
123531-27-1
Ethyl imidazo[1,2-b]pyridazine-2-carboxylate
123531-29-3
imidazo[1,2-b]pyridazine-2-carboxamide