Structure based design, synthesis and evaluation of new thienopyrimidine derivatives as anti-bacterial agents
作者:Satyaveni Malasala、Anusha Polomoni、Md. Naiyaz Ahmad、Manjulika Shukla、Grace Kaul、Arunav Dasgupta、Sidharth Chopra、Srinivas Nanduri
DOI:10.1016/j.molstruc.2021.130168
日期:2021.6
A number of TrmD inhibitors including thienopyrimidines and fused thienopyrimidines are reported as potent anti-bacterial and anti-mycobacterial agents. In the current study, a library of ~200 structurally diverse thienopyrimidines were designed and subjected to preliminary in silico studies. 22 of the compounds were selected, synthesized and were evaluated for their inhibitory activities against
TrmD,tRNA-(N 1 G37)甲基转移酶是SpoU-TrmD(SPOUT)RNA甲基转移酶家族的成员,是负责金黄色葡萄球菌,铜绿假单胞菌,结核分枝杆菌(Mtb)和脓肿分枝杆菌(单抗)。据报道,许多TrmD抑制剂包括噻吩并嘧啶和稠合的噻吩并嘧啶,它们是有效的抗菌剂和抗分枝杆菌剂。在当前的研究中,设计了一个约200个结构多样化的噻吩并嘧啶的文库,并进行了初步的计算机模拟研究。选择,合成了22种化合物,并评估了其对一组病原体的抑制活性大肠杆菌,金黄色葡萄球菌,肺炎克雷伯氏菌,鲍曼不动杆菌和铜绿假单胞菌和结核分枝杆菌(ATCC 27294)。在被测化合物中,发现MIC为16-32 µg / mL的13b,18a-e可抑制结核分枝杆菌(ATCC 27294)。发现化合物18f对金黄色葡萄球菌具有选择性,MIC为4μg/ mL,对结核分枝杆菌具有中等活性。对选定的化合物进一步进行对接,3D-QSAR和ADME