Synthesis, Fungicidal Activity, and Molecular Docking of 2-Acylamino and 2-Thioacylamino Derivatives of 1<i>H</i>-benzo[<i>d</i>]imidazoles as Anti-Tubulin Agents
作者:Konstantin L. Obydennov、Tatiana A. Kalinina、Nadezhda A. Galieva、Tetyana V. Beryozkina、Yue Zhang、Zhijin Fan、Tatiana V. Glukhareva、Vasiliy A. Bakulev
DOI:10.1021/acs.jafc.1c03325
日期:2021.10.13
This work deals with the synthesis and evaluation of fungicidal activity of benzimidazole derivatives, which are structural analogues of commercial anti-tubulin fungicides. A number of N-acyl and N-thioacyl derivatives of 2-amino-1H-benzo[d]imidazole were prepared, and their fungicidal activity against 13 strains of phytopathogenic fungi was studied. The most active compounds against the majority of
这项工作涉及苯并咪唑衍生物的杀真菌活性的合成和评价,苯并咪唑衍生物是商业抗微管蛋白杀真菌剂的结构类似物。制备了许多2-氨基-1H-苯并[ d ]咪唑的N-酰基和N-硫酰基衍生物,研究了它们对13株植物病原真菌的杀菌活性。对大多数研究菌株最具活性的化合物是3a、4l和4o,这些化合物的 EC 50值在 2.5–20 μg/mL 范围内。化合物3a对P. infestans表现出最高的活性菌株,其生长不受多菌灵抑制。所研究的苯并咪唑的各种互变异构形式的配体 - 受体复合物的形成与B. cinerea、F. oxysporum和P. infestans的 β-微管蛋白的同源模型进行了建模。诱导拟合对接已用于模拟。获得的数据表明苯并咪唑杀菌剂可能以带有双环外 C=N 键的互变异构形式与“诺考达唑腔”中的 β-微管蛋白结合。本研究还揭示了苯并咪唑与氨基酸残基 Val236 以及 Glu198 残基形成氢键的重要性。