3-(2,6-difluorophenyl)-7-((5-fluoropyridin-2-yl)amino)-1-(tetrahydrofuran-3-yl)-1,6-naphthyridin-2(1H)-one 生成 3-(2,6-difluorophenyl)-7-((5-fluoropyridin-2-yl)amino)-1-(tetrahydrofuran-3-yl)-1,6-naphthyridin-2(1H)-one 、 3-(2,6-difluorophenyl)-7-((5-fluoropyridin-2-yl)amino)-1-(tetrahydrofuran-3-yl)-1,6-naphthyridin-2(1H)-one