Synthesis and pharmacological evaluation of 1,3-diaryl substituted pyrazole based (thio)urea derivatives as potent antimicrobial agents against multi-drug resistant <i>Staphylococcus aureus</i> and <i>Mycobacterium tuberculosis</i>
作者:Ojaswitha Ommi、Mohammad Naiyaz Ahmad、Siva Nageswara Rao Gajula、Parita Wanjari、Shashikanta Sau、Puja Kumari Agnivesh、Santosh Kumar Sahoo、Nitin Pal Kalia、Rajesh Sonti、Srinivas Nanduri、Arunava Dasgupta、Sidharth Chopra、Venkata Madhavi Yaddanapudi
DOI:10.1039/d3md00079f
日期:——
development of newer alternatives has been deemed a panacea for tackling emerging antimicrobial resistance effectively. Herein, we report the design, synthesis, and biological evaluation of 1,3-diaryl substituted pyrazole-based urea and thiourea derivatives as antimicrobial agents. Preliminary screening results revealed that compound 7a (3,4-dichlorophenyl derivative) exhibited potent activity against
紧急开发新的替代品被认为是有效应对新出现的抗菌素耐药性的灵丹妙药。在此,我们报告了作为抗菌剂的1,3-二芳基取代的吡唑基脲和硫脲衍生物的设计、合成和生物学评价。初步筛选结果显示,化合物7a (3,4-二氯苯基衍生物)对金黄色葡萄球菌(MIC = 0.25 μg mL -1 )和化合物7j (2,4-二氟苯基衍生物)对结核分枝杆菌(MIC = 1 μg)具有有效的活性。毫升-1 )。化合物7a和7j对Vero细胞无毒,选择性指数分别为40和200,并表现出良好的微粒体稳定性。化合物7a对各种多重耐药金黄色葡萄球菌菌株(包括各种MRSA和VRSA菌株)表现出等价活性(MIC = 0.25 μg mL -1 ),并具有抑菌特性。在酶测定中, 7a在 8 倍 MIC 的浓度下有效抑制 DNA 旋转酶超螺旋活性。此外,分子模型研究表明化合物7a以良好的亲和力结合在 DNA 旋转酶的活性位点上。