tert-butyl 4-(benzyloxy)-5-(di-(tert-butoxycarbonyl)amino)-8-methyl-7-oxo-7,8-dihydropyrimido[4,5-d]pyrimidin-2-yl(4-iodophenyl)carbamate   、                                                                                      
反式-BETA-苯乙烯硼酸                                                                                                                                                              在
                                                                                                                                         
tris-(dibenzylideneacetone)dipalladium(0)                                                                                                                                                                                                                               potassium fluoride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 71.0h,
                                                                                                                以89%的产率得到(E)-tert-butyl 4-(benzyloxy)-5-(di(tert-butoxycarbonyl)amino)-8-methyl-7-oxo-7,8-dihydropyrimido[4,5-d]pyrimidin-2-yl(4-styrylphenyl)carbamate