Synthesis, Antifungal Activity, and 3D-QASR of Novel 1,2,3,4-Tetrahydroquinoline Derivatives Containing a Pyrimidine Ether Scaffold as Chitin Synthase Inhibitors
作者:Xiaoming Zhang、Zhaokai Yang、Huan Xu、Yuansheng Liu、Xinling Yang、Tengda Sun、Xingxing Lu、Fasheng Shi、Qing Yang、Wei Chen、Hongxia Duan、Yun Ling
DOI:10.1021/acs.jafc.2c01348
日期:2022.8.3
introduction of active groups of natural products into the framework of pesticide molecules is an effective approach for discovering active lead compounds, and thus has been widely used in the development of new agrochemicals. In this work, a novel series of 1,2,3,4-tetrahydroquinoline derivatives containing a pyrimidine ether scaffold were designed and synthesized by the active substructure splicing method
将天然产物的活性基团引入农药分子骨架是发现活性先导化合物的有效途径,因此被广泛应用于新型农用化学品的开发。在这项工作中,通过活性亚结构剪接方法设计并合成了一系列含有嘧啶醚支架的新型1,2,3,4-四氢喹啉衍生物。新化合物对几种真菌表现出良好的抗真菌活性。尤其是化合物4fh对马铃薯和核盘菌表现出优异的体外活性,EC 50值分别为0.71和2.47 μg/mL。4fh对几丁质合酶(CHS)的抑制活性(50 μM 时为 68.08%)略强于 polyoxin D(50 μM 时为 63.84%),在体内对核盘菌表现出明显的治疗和保护作用。因此,4fh可以被认为是一种新的候选杀菌剂作为几丁质合酶抑制剂。准确可靠的三维定量构效关系 (3D-QSAR) 模型为进一步开发更高活性的杀菌剂提供了有用的方向。分子对接显示,传统的氢键主要影响4fh与几丁质合酶的结合亲和力。目前的结果将为发现用于农业植物病害控制的潜在