64369-55-7
4-羟基-7-二乙氨基香豆素
→
~88%
131447-40-0
4-chloro-7-(diethylamino)chromen-2-one
141-82-2
丙二酸
+
91-68-9
3-羟基-N,N-二乙基苯胺
~38%
132092-32-1
4-chloro-8-(diethylamino)pyrano[3,2-c]chromene-2,5-dione