54903-57-0
1-[3-hydroxy-4-(methylamino)phenyl]ethanone
+
105-36-2
溴代乙酸乙酯
→
~72%
116337-71-4
7-acetyl-4-methyl-1,4-benzoxazin-3-one
21892-80-8
3-甲基-2-苯并恶唑酮
54903-61-6
6-乙酰基-3-甲基苯并噁唑-2(3h)-酮