作为潜在的nAChR调节器的新型1,2,4-Triazolone衍生物的基于目标的设计,合成和生物评估
Xingxing Lu1, Huan Xu1, Xiaoming Zhang1
1Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
Journal of agricultural and food chemistry
|December 5, 2023
概括
研究人员开发了一种新模型来设计针对尼古丁乙胆受体 (nAChR) 的新型杀虫剂. 这导致了强大的化合物4k和4q,它们对大豆虫有很高的疗效,对蜜蜂的毒性很低.
科学领域:
- 农业化学 农业化学
- 分子药理学分子药理学
- 杀虫剂开发 杀虫剂开发
背景情况:
- 基于目标的药物设计 (TBDD) 对于开发新型农业化学品是有效的.
- 尼古丁乙胆受体 (nAChRs) 是杀虫剂开发的关键标.
- 了解nAChR调节器结合对于设计选择性杀虫剂至关重要.
研究的目的:
- 开发使用TBDD的nAChR调制剂的统一药理模型.
- 设计和合成新的1,2,4-triazolone衍生物作为潜在的杀虫剂.
- 评估合成化合物的杀虫活性和选择性.
主要方法:
- 研究了11种nAChR调节器与乙胆结合蛋白 (AChBP) 的结合模式.
- 开发了一个基于TBDD的药理模型.
- 设计和合成的1,2,4-triazolone衍生物.
- 对*Aphis glycines*和*Apis mellifera*进行了生物测试.
- 进行了分子对接和分子动力学模拟,用于与*Aplysia californica* AChBP.BP结合的化合物4q.
主要成果:
- 化合物4k和4q对*阿菲斯甘氨酸*表现出极好的杀虫活性 (LC50分别为4.95 mg/L和3.17 mg/L).
- 这些化合物对*Apis mellifera*具有低毒性.
- 化合物4q对*Aplysia californica* AChBP表现出稳定的结合,与模拟结果一致.
结论:
- 化合物4q是针对nAChR的杀虫剂的潜在主要候选者.
- 开发的药理模型有助于合理设计环保的尼古丁性杀虫剂.
- 这项研究为未来针对nAChRs的杀虫剂发现提供了基础.
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