(R)-2-Phenyl-4,5-Dihydrothiazole-4-Carboxamide Derivatives Containing a Diacylhydrazine Group: Synthesis, Biological Evaluation, and SARs
作者:Feng-Yun Li、Jing-Bo Liu、Jia-Ning Gong、Gen Li
DOI:10.3390/molecules24244440
日期:——
A series of (R)-2-phenyl-4,5-dihydrothiazole-4-carboxamide derivatives containing a diacylhydrazine moiety were designed and synthesized. Their structures were confirmed by melting points, 1H NMR, 13C NMR, and elemental analysis (EA). Their antifungal and insecticidal activities were evaluated. The antifungal activity result indicated that most title compounds against Cercospora arachidicola, Alternaria
设计并合成了一系列含有二酰基肼部分的 (R)-2-phenyl-4,5-dihydrothiazole-4-carboxamide 衍生物。它们的结构通过熔点、1H NMR、13C NMR和元素分析(EA)得到证实。评价了它们的抗真菌和杀虫活性。抗真菌活性结果表明,大多数标题化合物对花生尾孢、黑链格孢、辣椒疫霉和梨形孢霉的抗真菌活性在50 mg/L时表现出明显的抗真菌活性,优于百菌清或多菌灵。(R)-N'-benzoyl-2-(4-chlorophenyl)-4,5-dihydrothiazole-4-carbohydrazide (I-5) 对六种测试的植物病原真菌的 EC50 值与百菌清的 EC50 值相当。CoMSIA 模型表明,在 R1 位置有一个适当的亲水基团,以及在R2位置适当的亲水和给电子基团可以提高对Physalospora piricola的抗真菌活性,这有助于结构的进一