201230-82-2
carbon monoxide
+
105544-36-3
7-溴-1H-吡咯并[2,3-B][1,4]恶嗪-2(3H)-酮
→
~79%
615568-51-9
2-氧代-2,3-二氢-1H-吡啶并[2,3-b][1,4]噁嗪-7-甲醛
615568-50-8
7-hydroxymethyl-1H-pyrido[2,3-b][1,4]oxazin-2-one
~72%