Synthesis, hydrolysis, biochemical and theoretical evaluation of 1,4-bis(alkoxycarbonyl)azetidin-2-ones as potential elastase inhibitors
作者:Stéphane Gérard、Georges Dive、Brigitte Clamot、Roland Touillaux、Jacqueline Marchand-Brynaert
DOI:10.1016/s0040-4020(02)00112-6
日期:2002.3
A series of 1,4-bis(alkoxycarbonyl)azetidin-2-ones, designed as potential suicide-inhibitors of serine proteases, has been synthesized and evaluated against porcine pancreatic elastase (PPE). The most active compound (Ki∼10 μM; reversible inhibitor) was equipped with phenethyloxycarbonyl and benzyloxycarbonyl side-chains at positions N1 and C4, respectively, with the (S)-configuration. 1H NMR spectroscopic
合成了一系列设计为丝氨酸蛋白酶的潜在自杀抑制剂的1,4-双(烷氧基羰基)氮杂环丁烷-2-酮,并针对猪胰弹性蛋白酶(PPE)进行了评估。最活跃的化合物(ķ我〜10μM;可逆抑制剂)装备有分别在位置N1和C4,苯乙苄氧基羰基和侧链,与(小号) -构型。1个反应混合物的1 H NMR光谱分析表明,就氮杂环丁酮和氨基甲酸酯的功能而言,在化学和酶催化的反应中,酯的功能均优先被水解。考虑到三个潜在敏感的羰基官能团和两个立体异构体,从头算来确定在酶口袋模型中达到水解的过渡态结构所需的能垒。