90059-74-8
4-(bromomethyl)-5,7-dihydroxychromen-2-one
+
127-08-2
乙酸钾
→
111507-77-8
7-羟基呋喃并[4,3,2-de]色烯-4(2H)-酮
90059-75-9
[5-acetyloxy-4-(bromomethyl)-2-oxochromen-7-yl] acetate