Synthesis, Molecular Docking and Biological Evaluation of Diaryl Pyrimidine Derivatives as Urease Inhibitors
作者:Sh. Boumi、M. Talebi、Y. Sarmad、K. Bassam、M. Barzegar、F. S. Hosseini、M. Amini、M. Amanlou
DOI:10.1007/s11094-022-02582-6
日期:2022.3
Urease is a dinickel enzyme that is responsible for the hydrolysis of urea to ammonia and carbon dioxide. A series of bacteria like Helicobacter pylori produce urease in order to release ammonia via urea hydrolysis and survive in acidic environments. Urease inhibitors are often used as a part of the medical treatment of infections by ureolytic bacteria. In this work, a series of diaryl pyrimidine derivatives (compounds 6a–6i) have been synthesized as urease inhibitors, their inhibitory activities against Jack bean urease have been investigated in vitro, and the obtained values of IC50 showed potent urease inhibitory activity. Cytotoxic activity of the synthesized compounds was evaluated against four cell lines (HT-29, MCF-7, T47D, and NIH3T3). Many of the tested compounds did not show significant cytotoxicity, and compounds 6d, 6g, and 6i did not show any cytotoxic activity against these cell lines. Among these, compound 6d showed the most pronounced urease inhibitory activity (IC50 = 780 ± 50nM), being over 28-fold more potent than thiourea (IC50 = 22.01 ± 0.08 ìM) and 128-fold more potent than hydroxyurea (IC50 = 100.00 ± 0.08 ìM) as standard inhibitors, respectively. The results of molecular docking studies showed that compound 6b had the best binding energy and exhibited proper interaction with the active site of urease.
脲酶是一种二镍酶,负责将尿素水解为氨和二氧化碳。一系列细菌如幽门螺杆菌产生脲酶,以通过尿素水解释放氨并在酸性环境中生存。脲酶抑制剂通常被用作尿液分解细菌感染的医疗治疗的一部分。在本研究中,合成了一系列二芳基嘧啶衍生物(化合物6a-6i)作为脲酶抑制剂,研究了它们对菜豆脲酶的体外抑制活性,获得的IC50值显示出强效的脲酶抑制活性。合成化合物的细胞毒性活性在四条细胞系(HT-29、MCF-7、T47D和NIH3T3)上进行了评估。许多测试化合物未显示出显著的细胞毒性,化合物6d、6g和6i对这些细胞系未表现出任何细胞毒性活性。其中,化合物6d表现出最明显的脲酶抑制活性(IC50 = 780 ± 50 nM),其抑制效力比硫脲(IC50 = 22.01 ± 0.08 μM)高出28倍,比羟基脲(IC50 = 100.00 ± 0.08 μM)高出128倍,作为标准抑制剂。分子对接研究结果表明,化合物6b具有最佳结合能,并与脲酶的活性位点有良好的相互作用。