Glycosyl triazoles as novel insect β-N-acetylhexosaminidase OfHex1 inhibitors: Design, synthesis, molecular docking and MD simulations
作者:Lili Dong、Shengqiang Shen、Wei Chen、Huizhe Lu、Dongdong Xu、Shuhui Jin、Qing Yang、Jianjun Zhang
DOI:10.1016/j.bmc.2018.11.032
日期:2019.6
furnacalis (Guenée) and inhibition of this enzyme has been considered a promising strategy for the development of eco-friendly pesticides. In this article, based on the structure of the catalytic domains of OfHex1, a series of novel glycosyl triazoles were designed and synthesized via Cu-catalyzed azide-alkyne [3+2] cycloaddition reaction. To investigate the potency and selectivity of these glycosyl triazoles
昆虫酶GH20β-N-乙酰基-d-己糖胺酶OfHex1代表在农业害虫Ostrinia furnacalis(Guenée)中发现的一种重要的几丁质分解酶,对这种酶的抑制被认为是开发环保农药的一种有前途的策略。本文基于OfHex1催化结构域的结构,设计并通过Cu催化的叠氮化物-炔烃[3 + 2]环加成反应合成了一系列新型糖基三唑。为了研究这些糖基三唑的效力和选择性,研究了对OfHex1和HsHexB(人β-N-乙酰基己糖胺酶B)的抑制活性。特别地,化合物17c(OfHex1,Ki =28.68μM; HsHexB,Ki>100μM)显示出对OfHex1的合适的活性和选择性。此外,使用分子对接和MD模拟研究了OfHex1对17c的可能抑制机制。结构-活性关系结果以及形成的结合模式可能为新型OfHex1抑制剂的进一步开发提供有希望的见识。