Discovery of aromatic 2-(3-(methylcarbamoyl) guanidino)-N-aylacetamides as highly potent chitinase inhibitors
作者:Zhixiang Zhao、Fang Li、Wei Chen、Qing Yang、Huizhe Lu、Jianjun Zhang
DOI:10.1016/j.bmc.2023.117172
日期:2023.2
Chitinases are important glycoside hydrolases that are closely related to bacterial pathogenesis, fungal cell wall remodelling, and insect moulting. Consequently, chitinases have become attractive targets for therapeutic drugs and pesticides. In this study, we designed and synthesised a series of novel chitinase inhibitors based on the N-methylcarbamoylguanidinyl group of the natural product argifin
几丁质酶是重要的糖苷水解酶,与细菌发病机制、真菌细胞壁重塑和昆虫蜕皮密切相关。因此,几丁质酶已成为治疗药物和杀虫剂的有吸引力的目标。在本研究中,我们基于天然产物argifin的N-甲基氨基甲酰基胍基设计并合成了一系列新型几丁质酶抑制剂。活性最强的化合物8h对 I 组几丁质酶Hs Chit1、Sm ChiB 和Of Chi-h 表现出强烈的抑制活性,IC 50值分别为 0.19 µM、4.2 nM 和 25 nM。结合模式研究表明化合物8h在几丁质酶的 +1 或 +2 亚位点形成 π-π 堆积/疏水相互作用。此外,在药效团N-甲基氨基甲酰基胍基和 -1 亚位点的关键残基之间形成关键氢键网。总之,这项研究的结果为使用平面结构和N-甲基氨基甲酰基胍基的组合开发有效的小分子几丁质酶抑制剂提供了新的见解。