3-bromomethyl-1-(2,2-dimethylpropionyloxy)-9,10-anthraquinone 、
methyl 4-(2-methyl-1,3-dioxolan-2-yl)-3-oxobutanoate 在
sodium hydride 作用下,
以
四氢呋喃 为溶剂,
以89%的产率得到2-[4-(2,2-Dimethyl-propionyloxy)-9,10-dioxo-9,10-dihydro-anthracen-2-ylmethyl]-4-(2-methyl-[1,3]dioxolan-2-yl)-3-oxo-butyric acid methyl ester