39716-50-2
5,6,7,8-tetrahydro-2H-pyrido[4,3-c]pyridazin-3-one
+
110-16-7
顺丁烯二酸
→
45882-63-1
3-氯-5,6,7,8-四氢并吡啶[4,3-C]哒嗪