Discovery of novel lipophilic inhibitors of OXA-10 enzyme (class D β-lactamase) by screening amino analogs and homologs of citrate and isocitrate
作者:Joséphine Beck、Lionel Vercheval、Carine Bebrone、Adriana Herteg-Fernea、Patricia Lassaux、Jacqueline Marchand-Brynaert
DOI:10.1016/j.bmcl.2009.04.149
日期:2009.7
Aminocitrate (and homolog) derivatives have been prepared by bis-alkylation of glycinate Schiff bases with bromoacetates (and ethyl acrylate), followed by N-acylation and esters (partial or complete) deprotection. Aminoisocitrate was similarly obtained by mono-alkylation with diethyl fumarate. Evaluation against representative β-lactamases revealed that the free acid derivatives are modest inhibitors
氨基柠檬酸酯(和同系物)衍生物的制备方法是:将甘氨酸酯Schiff碱与溴乙酸酯(和丙烯酸乙酯)进行双烷基化,然后进行N-酰化和酯(部分或全部)脱保护。通过与富马酸二乙酯单烷基化类似地获得氨基异柠檬酸。对代表性的β-内酰胺酶的评估表明,游离酸衍生物是A类酶的适度抑制剂,而其苄基酯则显示出对OXA-10(D类酶)的良好抑制作用。对接实验的特点是在活性位点发生了疏水相互作用。