Inhibition of copper-dependent amine oxidases by some hydrazides of pyrrol-1-ylbenzoic and pyrrol-1-ylphenylacetic acids
作者:Marino Artico、Federico Corelli、Silvio Massa、Giorgio Stefancich、Luciana Avigliano、Olivia Befani、Giordana Marcozzi、Stefania Sabatini、Bruno Mondovi
DOI:10.1021/jm00399a021
日期:1988.4
Some hydrazides of pyrrol-1-ylbenzoic and pyrrol-1-ylphenylacetic acids were prepared, and their effect on copper-dependent amine oxidases (Cu-AOs) and FAD monoamine oxidases (MAOs) activities was tested. The compounds were not substrates for Cu-AO enzymes but acted as noncompetitive inhibitors. Hydrazides of pyrrol-1-ylphenylacetic acids were highly specific for plasma amine oxidase (Ki = 0.5-1 microM)
制备了一些吡咯-1-基苯甲酸和吡咯-1-基苯乙酸的酰肼,并测试了它们对铜依赖性胺氧化酶(Cu-AOs)和FAD单胺氧化酶(MAOs)活性的影响。该化合物不是Cu-AO酶的底物,而是充当非竞争性抑制剂。吡咯-1-基苯基乙酸的酰肼对血浆胺氧化酶具有高度特异性(Ki = 0.5-1 microM)。相反,所有酰肼均是MAO活性的弱抑制剂。与酰肼衍生物一起孵育导致Cu-AOs的不可逆失活。因此,抑制意味着两个不同的步骤。第一个是酶抑制剂复合物的快速形成,并通过透析逆转。第二步,复合体不可逆转地转化,