Synthesis of bi-substrate state mimics of dihydropteroate synthase as potential inhibitors and molecular probes
作者:Jianjun Qi、Kristopher G. Virga、Sourav Das、Ying Zhao、Mi-Kyung Yun、Stephen W. White、Richard E. Lee
DOI:10.1016/j.bmc.2010.12.003
日期:2011.2
a new class of transition state mimics has been designed and synthesized that have the capacity to bind to the pterin, phosphate and para-amino binding sites. The design, synthesis and evaluation of these compounds as inhibitors of Bacillus anthracis dihydropteroate synthase is described herein. Outcomes from this work have identified the first trivalent inhibitors of dihydropteroate synthase whose
越来越多的耐药细菌的出现促使我们设计和开发新的抗菌剂。根据该目标,正在探索一种新的二氢蝶酸合酶靶向方法,该酶作为磺胺类抗微生物剂的作用位点。使用结构信息,设计并合成了一类新的过渡态模拟物,它们能够与蝶呤、磷酸盐和对氨基结合位点结合。这些化合物作为炭疽芽孢 杆菌抑制剂的设计、合成和评价本文描述了二氢蝶酸合酶。这项工作的结果确定了第一个二氢蝶酸合酶的三价抑制剂,其活性显示出缓慢的结合抑制作用。该系列中最活跃的化合物含有氧化蝶呤环。这些抑制剂的结合被建模为二氢蝶呤合酶活性位点,并证明与观察到的生物测定数据具有良好的相关性,并为未来设计更高亲和力的过渡态模拟物提供了重要的见解。