ethyl (2S)-2-[(4S)-4-[4-[N-[(3,4-dihydro-2-methyl-4-oxo-6-quinazolinyl)methyl]-N-prop-2-ynylamino]benzamido]-4-(methoxycarbonyl)butanethioamido]-4-(ethoxycarbonyl)butyrate 在
sodium hydroxide 作用下,
以
甲醇 为溶剂,
反应 6.5h,
以56%的产率得到(2S)-2-[(4S)-4-[4-[N-[(3,4-dihydro-2-methyl-4-oxo-6-quinazolinyl)methyl]-N-prop-2-ynylamino]benzamido]-4-(carboxy)butanethioamido]-4-(carboxy)butyric acid