Synthesis, crystal structure,anti-tuberculosis activity and toxicity prediction of N-(4-bromophenyl)-3-(5-(4-chloro-3-nitrophenyl)-1,3,4-oxadiazol-2-yl)benzenesulfonamide
作者:Chao Fan、Jianchao Chen、Zhongkai Xu、Peng Yin、Chengjun Wu、Tiemin Sun
DOI:10.1016/j.molstruc.2023.136901
日期:2024.2
hydrazone structure was replaced by 1,3,4-oxadiazole ring to obtain D series of compounds. Compound D4 was characterized by single crystal X-ray diffraction. Compound D4 demonstrated an IC50 = 70.51 ± 0.2 μM against Mtb LeuRS and an MIC = 53.57 ± 0.2 μg/mL against Mtb H37Ra. In order to further understand the structural interaction between this series of compound and isoleucine, the crystal structure and
氨酰-tRNA合成酶广泛分布于所有生物体中,在蛋白质的合成中发挥着重要作用。由于原核和真核氨酰 tRNA 合成酶之间的显着差异,它们成为有效抗结核治疗的有希望的靶标。此前,我们课题组利用分子对接和片段连接方法设计合成了含有取代酰腙的苯磺酰胺类化合物。其中,化合物1A表现出最高的活性,专门针对Mtb LeuRS,对Mtb H37Ra的IC 50 = 21.37 ± 0.2 μM,MIC = 18.85 ± 0.2 μM。为了解决该类化合物柔性过大的问题,采用构象限制策略,将酰腙结构替换为1,3,4-恶二唑环,得到D系列化合物。通过单晶X射线衍射对化合物D4进行了表征。化合物D4 针对 Mtb LeuRS 的IC 50 = 70.51 ± 0.2 μM,针对 Mtb H37Ra 的 MIC = 53.57 ± 0.2 μg/mL。为了进一步了解该系列化合物与异亮氨酸之间的结构相互作用,对化合