4-(4-ethyl-2-fluoro-phenylamino)-1-methyl-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid ethyl ester 、
sodium hydroxide 、 以
乙醇 为溶剂,
反应 2.0h,
以to give 4-(4-Ethyl-2-fluoro-phenylamino)-1-methyl-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid as a white solid (8.30 g, 98%)的产率得到4-(4-ethyl-2-fluoro-phenylamino)-1-methyl-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid