N-(4-((2-chloropyridin-4-yl)oxy)-2,5-difluorophenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide 、
异丁酰胺 、
4,5-双二苯基膦-9,9-二甲基氧杂蒽 、
Dicaesio carbonate 在
(1E,4E)-1,5-diphenylpenta-1,4-dien-3-one;palladium 作用下,
以
1,4-二氧六环 为溶剂,
以to obtain N-(2,5-difluoro-4-((2-isobutyramidopyridin-4-yl)oxy)phenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (55 mg, 35% yield)的产率得到N-(2,5-difluoro-4-((2-isobutyramidopyridin-4-yl)oxy)phenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide