154582-44-2
2-(6-bromo-2-oxooxazolo[4,5-b]pyridin-3(2H)-yl)acetonitrile
→
~93%
21594-52-5
6-溴-3H-恶唑并[4,5-b]吡啶-2-酮
60832-72-6
2,3-二氢吡啶并[2,3-d][1,3]噁唑-2-酮
~91%
2402-99-5
3,5-二溴吡啶氮氧化物-1
+
4083-64-1
对甲基苯磺酰异氰酸酯
~57%
16867-03-1
2-氨基-3-羟基吡啶