542-05-2
1,3-丙酮二羧酸
+
108-24-7
乙酸酐
→
~78%
15997-62-3
4-乙酰氧基-2H,3h-吡喃-2,6-二酮
21298-80-6
2-(2-oxo-1H-quinolin-4-yl)acetic acid