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