2-methyl-4-(2-methyl-4-oxo-4H-chromen-8-yl)-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carbonitrile 、
三氟甲磺酸酐 在
acetonitrile-water 、
甲酸 作用下,
以
吡啶 为溶剂,
反应 1.0h,
以80 mg (58% of theory) of the title compound are obtained的产率得到3-Cyano-2-methyl-4-(2-methyl-4-oxo-4H-chromen-8-yl)-1,4-dihydro-1,6-naphthyridin-5-yl trifluoromethanesulfonate