Synthesis and Quantitative Structure−Activity Relationship of a Novel Series of Small Conductance Ca<sup>2+</sup>-Activated K<sup>+</sup> Channel Blockers Related to Dequalinium
作者:Dimitrios Galanakis、Carole A. Davis、C. Robin Ganellin、Philip M. Dunn
DOI:10.1021/jm950520i
日期:1996.1.1
The synthesis, pharmacological testing, and quantitative structure-activity relationship studies of a novel series of bisquinolinium small conductance Ca(2+)-activated K+ channel blockers (23) related to dequalinium are described. In this series, two quinolinium rings are linked via the 4-position to an alpha, omega-diamino alkylene chain and the ring N atom is quaternized with a methyl or benzyl group
IDENTIFICATION OF INHIBITORS OF TCPC AND TIR NADase ACTIVITY
申请人:Washington University
公开号:US20200283820A1
公开(公告)日:2020-09-10
The present invention provides compounds useful as inhibitors of TIR NADase activity, compositions thereof, and methods of using the same. The present invention is useful for inhibition of TIR-domain NADase activity and/or treating microbial infection and/or modulating microbial physiology.
Development of Single‐Stranded DNA Bisintercalating Inhibitors of Primase DnaG as Antibiotics
作者:Keith D. Green、Ankita Punetha、Nishad Thamban Chandrika、Caixia Hou、Sylvie Garneau‐Tsodikova、Oleg V. Tsodikov
DOI:10.1002/cmdc.202100001
日期:2021.6.17
a topical antibacterial agent, is an inhibitor of Staphylococcus aureus primaseDnaG (SaDnaG) with low-micromolar minimum inhibitory concentrations against several S. aureus strains, including methicillin-resistant bacteria. Mechanistic studies of dequalinium and a series of nine of its synthesized analogues revealed that these compounds are single-stranded DNA bisintercalators that penetrate a bacterium
细菌中的许多必需酶仍然是抗菌剂的有希望的潜在靶标。在这项研究中,我们发现地喹铵是一种外用抗菌剂,是金黄色葡萄球菌引物酶 DnaG ( Sa DnaG) 的抑制剂,对几种金黄色葡萄球菌具有低微摩尔的最低抑制浓度菌株,包括耐甲氧西林细菌。dequalinium 及其一系列九种合成类似物的机理研究表明,这些化合物是单链 DNA 双嵌入剂,可通过破坏细菌膜来穿透细菌。该系列中最好的化合物可能直接与 DnaG 相互作用,抑制葡萄球菌细胞生长和生物膜形成,并且对哺乳动物细胞没有显着的溶血活性或毒性。该化合物是进一步开发新型抗葡萄球菌治疗剂的绝佳先导。
SINGH A. K., CHEM. AND PHARM. BULL. <CPBT-AL>, 1975, 23, NO 8, 1869-1873