Abstract
A new series of chalcones, pyrazolinyl-pyrazoles, pyrazole-4-carbaldehyde oximes, pyrazole-4-carbonitriles, 5-pyrazolyl-1,2,4-triazolidine-3-thiones, and Knoevenagel condensation products was synthesized from 3-aryl-1-phenyl-1H-pyrazole-4-carbaldehydes. Most reactions were carried out either without solvent or in the presence of water as a green solvent. The structure of synthesized compounds was characterized by spectral and elemental analysis. The synthesized compounds were tested in vitro for their antimicrobial activity against Escherichia coli, Staphylococcus aureus, and Candida albicans in comparison with imipenem (intravenous β-lactam antibiotic) and clotrimazole (antifungal medication) as reference drugs by using the agar diffusion technique. 3-Aryl-1-phenyl-1H-pyrazole-4-carbonitriles 8b, 8c, and 8d showed significant antifungal activity against the fungus C. albicans.
摘要
一系列新的查尔酮,吡唑啉基吡唑,吡唑-4-甲醛肟,吡唑-4-碳腈,5-吡唑基-1,2,4-三唑二烯-3-硫酮和诺伊文纳盖尔缩合产物,是从3-芳基-1-苯基-1H-吡唑-4-甲醛合成的。大多数反应在无溶剂或水存在的情况下作为绿色溶剂进行。合成化合物的结构通过光谱和元素分析进行表征。合成的化合物通过琼脂扩散技术与亚胺替南(静脉注射β-内酰胺类抗生素)和克霉唑(抗真菌药物)作为参考药物进行了体外抗菌活性测试,针对大肠杆菌,金黄色葡萄球菌和白色念珠菌。3-芳基-1-苯基-1H-吡唑-4-碳腈8b,8c和8d对真菌白色念珠菌表现出显著的抗真菌活性。