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。