Synthesis of Novel Nalidixic Acid-Based 1,3,4-Thiadiazole and 1,3,4-Oxadiazole Derivatives as Potent Antibacterial Agents
作者:Nisha Aggarwal、Rajesh Kumar、Prem Dureja、Jitender Mohan Khurana
DOI:10.1111/j.1747-0285.2011.01316.x
日期:2012.4
acid‐based 1,3,4‐thia(oxa)diazoles, their thio ethers, sulfones, bis mercapto, and Mannich bases were synthesized and characterized by Infrared spectra, 1H NMR, 13C NMR, and elemental analysis. These compounds were evaluated for their antibacterial activity against two Gram‐positive and three Gram‐negative bacteria. The preliminary bioassay showed that most of the compounds had better antibacterial activity
基于红外光谱,1 H NMR,13 C NMR和元素分析合成了新颖的基于萘啶酸的1,3,4-噻二(恶唑)二唑,其硫醚,砜,双巯基和曼尼希碱。评估了这些化合物对两种革兰氏阳性和三种革兰氏阴性细菌的抗菌活性。初步的生物分析表明,大多数化合物对五种试验细菌的剂量为50μg/ mL时,其母体化合物1,3,4-噻吩二恶唑的抗菌活性均优于母体化合物。基于萘啶酸的1,3,4-噻二唑的四个曼尼希碱对枯草芽孢杆菌,肺炎克雷伯菌和铜绿假单胞菌的最低抑制浓度在6.25–125μg/ mL范围内。