ethyl (2S)-2-[[4-[[3-(2,2-dimethylpropanoyloxymethyl)-2,7-dimethyl-4-oxoquinazolin-6-yl]methyl-prop-2-ynylamino]-2-fluorobenzoyl]amino]-5-[(5-oxo-1,4-dihydro-1,2,4-triazol-3-yl)sulfinyl]pentanoate 在
sodium hydroxide 作用下,
以
甲醇 为溶剂,
反应 1.67h,
以67%的产率得到(S)-2-{4-[(2,7-Dimethyl-4-oxo-3,4-dihydro-quinazolin-6-ylmethyl)-prop-2-ynyl-amino]-2-fluoro-benzoylamino}-5-(5-oxo-4,5-dihydro-1H-[1,2,4]triazole-3-sulfinyl)-pentanoic acid