氯甲酸三氯甲酯 、
3-((4-(isopropylamino)-2-(methylthio)pyrimidin-5-yl)methylamino)-5-nitrobenzonitrile 以
三乙胺 为溶剂,
以to give 3-(1-isopropyl-7-(methylthio)-2-oxo-1,2-dihydropyrimido[4,5-d]pyrimidin-3(4H)-yl)-5-nitrobenzonitrile (1.2 g, 51% yield), which的产率得到3-(1-isopropyl-7-(methylthio)-2-oxo-1,2-dihydropyrimido[4,5-d]pyrimidin-3(4H)-yl)-5-nitrobenzonitrile