4-hydroxy-1-(3-nitrophenyl)-3-[1-oxo-3-(pyridin-4-yl)propyl]-1,8-naphthyridin-2(1H)-one 、
一水合肼 、 以
乙醇 为溶剂,
以to give 5-(3-nitrophenyl)-3-[2-(pyridin-4-yl)ethyl]-1H-pyrazolo[4,3-c][1,8]naphthyridin-4(5H)-one (394 mg, 96%)的产率得到5-(3-nitrophenyl)-3-[2-(pyridin-4-yl)ethyl]-1H-pyrazolo[4,3-c][1,8]naphthyridin-4(5H)-one