Substituent effects on the bioactivation of 2-(N-hydroxyacetamido)fluorenes by N-arylhydroxamic acid N,O-acyltransferase
作者:Adnan A. Elfarra、Patrick E. Hanna
DOI:10.1021/jm00148a014
日期:1985.10
A series of 7-substituted analogues of 2-(N-hydroxyacetamido)fluorene (1) was subjected to bioactivation by a partially purified preparation of hamster hepatic AHAT, and the rates of methylthio adduct formation resulting from the reaction of the activated intermediates with N-acetylmethionine were determined. Electronegative substituents enhanced the amount of adduct formed; this finding contrasted
通过部分纯化的仓鼠肝AHAT制备一系列2-(N-羟基乙酰氨基)芴(1)的7-取代类似物,进行生物活化,以及由活化的中间体与N反应生成的甲硫基加合物的形成速率测定了乙酰乙酰蛋氨酸。负电子取代基增加了加合物的形成;这一发现与先前的研究结果相反,在先前的研究中,给电子取代基通过1的类似物促进了AHAT的基于机理的失活。加合物的结构是由7种化合物中几种活化形式的反应形成的测定了用N-乙酰甲硫氨酸和2'-脱氧鸟苷取代的化合物;