5-fluoro-3-[2-(4-methyl-2-oxo-1-phenyl-1,2-dihydro-pyridin-3-yl)-butyrylamino ]-4-oxo-pentanoic acid tert-butyl ester 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
以85%的产率得到5-fluoro-3-[2-(4-methyl-2-oxo-1-phenyl-1,2-dihydro-pyridin-3-yl)-butyrylamino]-4-oxo-pentanoic acid