1303588-10-4
→
~90%
1196153-28-2
6-溴-2,2-二甲基-2H-吡啶并[3,2-b][1,4]噁嗪-3(4h)-酮
1373771-94-8
~62%
1373771-93-7
443956-08-9
2-硝基-3-羟基-6-溴吡啶
15128-82-2
3-羟基-2-硝基吡啶