Novel Butenolide Derivatives as Dual-Chitinase Inhibitors to Arrest the Growth and Development of the Asian Corn Borer
作者:Renxuan Zou、Xiang Li、Xi Jiang、Dongmei Shi、Qing Han、Hongxia Duan、Qing Yang
DOI:10.1021/acs.jafc.3c06714
日期:2024.3.6
OfChtI and OfChi-h are considered potential targets for the control of Asian corn borer (Ostrinia furnacalis). In this work, the previously reported OfChtI inhibitor 5f was found to show certain inhibitory activity against OfChi-h (Ki = 5.81 μM). Two series of novel butenolide derivatives based on lead compound 5f were designed with the conjugate skeleton, contributing to the π-binding interaction
Of ChtI 和Of Chi-h 被认为是控制亚洲玉米螟 ( Ostriniafurnacalis ) 的潜在目标。在这项工作中,发现先前报道的Of ChtI抑制剂5f对Of Chi-h表现出一定的抑制活性( K i = 5.81 μM)。基于先导化合物5f ,设计并合成了两个系列的新型丁烯酸内酯衍生物,其具有共轭骨架,有助于与几丁质酶的π结合相互作用。浓度为 10 μM 的化合物4a-l和7a-p分别对Of ChtI 和Of Chi-h 表现出优异的抑制活性。化合物4h被发现是一种良好的双几丁质酶抑制剂,对Of ChtI和Of Chi-h的K i值分别为1.82和2.00 μM。通过分子对接进行的抑制机制研究表明,π-π堆积相互作用对于新型丁烯酸内酯衍生物对两种不同几丁质酶的抑制活性至关重要。初步生物测定表明4h对亚洲玉米螟有一定的生长抑制作用。丁烯酸内酯样类似物应作为有前景的新型双几