(S)-2-{2-Fluoro-4-[(2-methyl-4-oxo-3,4-dihydro-quinazolin-6-ylamino)-methyl]-benzoylamino}-pentanedioic acid diethyl ester 在
sodium hydroxide 作用下,
以
乙醇 为溶剂,
反应 2.0h,
以30%的产率得到(S)-2-{2-Fluoro-4-[(2-methyl-4-oxo-3,4-dihydro-quinazolin-6-ylamino)-methyl]-benzoylamino}-pentanedioic acid