Synthesis and Antifungal Activity of 2‐(2‐Benzoxazolyl)‐1‐arylethanone and 2‐(2‐Benzoxazolyl)‐1‐alkylethanone Derivatives
作者:Bing‐Yu Che、Jun Jin、Mao Sun、Qian Hu、Jun‐You Jian、Xiao‐Jiang Hao、Lie‐Jun Huang
DOI:10.1002/cbdv.202301491
日期:2023.12
discover more effective antifungal candidates, 33 benzoxazole derivatives, were designed, synthesized, and evaluated for their antifungal activity against seven phytopathogenic fungi by the mycelium growth rate method. Among 33 benzoxazole derivatives had thirteen derivatives no reported, and new derivatives C17 exhibited good inhibitory activity against Phomopsis sp. with EC50 values of 3.26 μM. Structure–activity
为了发现更有效的抗真菌候选药物,设计、合成了 33 种苯并恶唑衍生物,并通过菌丝生长速率法评估了它们对七种植物病原真菌的抗真菌活性。 33个苯并恶唑衍生物中,有13个衍生物未见报道,新衍生物C17对拟茎点霉表现出良好的抑制活性。 EC 50值为 3.26 μM。这些衍生物的构效关系(SAR)分析表明,取代基在邻位、间位和对位取代苯乙酮的抗真菌活性中发挥着关键作用。初步的机制探索表明, C17可能通过靶向菌丝体细胞膜发挥抗真菌活性,并通过观察到的菌丝体形态变化、胞外多糖形成、细胞内容物、细胞膜通透性和完整性等效应得到验证。此外, C17对拟茎点霉(Phomopsis sp.)具有有效的疗效。体内实验结果表明, C17可能是一种新型有效的抗真菌剂。