110-89-4
哌啶
+
3757-06-0
2-oxochromene-3-carbonyl chloride
→
~60%
18144-51-9
3-(piperidine-1-carbonyl)chromen-2-one
531-81-7
香豆素-3-羧酸
1846-76-0
香豆素-3-羧酸乙酯