ChemInform Abstract: A New Class of Fluoroquinolones: Benzenesulfonamidefluoroquinolones (BSFQs), Antibacterial Activity and SAR Studies.

ChemInform ◽  
2010 ◽  
Vol 30 (33) ◽  
pp. no-no
Author(s):  
Marcelo J. Nieto ◽  
Fabiana del Lujan Alovero ◽  
Ruben H. Manzo ◽  
Maria R. Mazzieri
Keyword(s):  
Antibacterial Activity ◽  
New Class ◽  
Sar Studies

A new class of fluoroquinolones: benzenesulfonamidefluoroquinolones (BSFQs), antibacterial activity and SAR studies

1999 ◽  
Vol 34 (3) ◽  
pp. 209-214 ◽  
Author(s):  
Marcelo J Nieto ◽  
Fabiana del Luján Alovero ◽  
Ruben H Manzo ◽  
Maria R Mazzieri
Keyword(s):  
Antibacterial Activity ◽  
New Class ◽  
Sar Studies

Large-scale High-throughput Screening Revealed 5'-(carbonylamino)-2,3'- bithiophene-4'-carboxylate as Novel Template for Antibacterial Agents

2020 ◽  
Vol 17 (5) ◽  
pp. 716-724
Author(s):  
Yan A. Ivanenkov ◽  
Renat S. Yamidanov ◽  
Ilya A. Osterman ◽  
Petr V. Sergiev ◽  
Vladimir A. Aladinskiy ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
High Throughput ◽  
High Throughput Screening ◽  
Large Scale ◽  
Antibacterial Agents ◽  
Sos Response ◽  
Luciferase Assay ◽  
Translational Machinery ◽  
E Coli ◽  
New Class

Background: The key issue in the development of novel antimicrobials is a rapid expansion of new bacterial strains resistant to current antibiotics. Indeed, World Health Organization has reported that bacteria commonly causing infections in hospitals and in the community, e.g. E. Coli, K. pneumoniae and S. aureus, have high resistance vs the last generations of cephalosporins, carbapenems and fluoroquinolones. During the past decades, only few successful efforts to develop and launch new antibacterial medications have been performed. This study aims to identify new class of antibacterial agents using novel high-throughput screening technique. Methods: We have designed library containing 125K compounds not similar in structure (Tanimoto coeff.< 0.7) to that published previously as antibiotics. The HTS platform based on double reporter system pDualrep2 was used to distinguish between molecules able to block translational machinery or induce SOS-response in a model E. coli system. MICs for most active chemicals in LB and M9 medium were determined using broth microdilution assay. Results: In an attempt to discover novel classes of antibacterials, we performed HTS of a large-scale small molecule library using our unique screening platform. This approach permitted us to quickly and robustly evaluate a lot of compounds as well as to determine the mechanism of action in the case of compounds being either translational machinery inhibitors or DNA-damaging agents/replication blockers. HTS has resulted in several new structural classes of molecules exhibiting an attractive antibacterial activity. Herein, we report as promising antibacterials. Two most active compounds from this series showed MIC value of 1.2 (5) and 1.8 μg/mL (6) and good selectivity index. Compound 6 caused RFP induction and low SOS response. In vitro luciferase assay has revealed that it is able to slightly inhibit protein biosynthesis. Compound 5 was tested on several archival strains and exhibited slight activity against gram-negative bacteria and outstanding activity against S. aureus. The key structural requirements for antibacterial potency were also explored. We found, that the unsubstituted carboxylic group is crucial for antibacterial activity as well as the presence of bulky hydrophobic substituents at phenyl fragment. Conclusion: The obtained results provide a solid background for further characterization of the 5'- (carbonylamino)-2,3'-bithiophene-4'-carboxylate derivatives discussed herein as new class of antibacterials and their optimization campaign.

Recent Advances in 1,3,5-Triazine Derivatives as Antibacterial Agents

2020 ◽  
Vol 17 (8) ◽  
pp. 991-1041
Author(s):  
Divya Utreja ◽  
Jagdish Kaur ◽  
Komalpreet Kaur ◽  
Palak Jain
Keyword(s):  
Antibacterial Activity ◽  
Heterocyclic Compounds ◽  
Antibacterial Agents ◽  
Rapid Development ◽  
Pharmacological Action ◽  
Biological Properties ◽  
Vast Array ◽  
Bacterial Diseases ◽  
New Class ◽  
Triazine Derivatives

Triazine, one of the nitrogen containing heterocyclic compounds has attracted the considerable interest of researchers due to the vast array of biological properties such as anti-viral, antitumor, anti-convulsant, analgesic, antioxidant, anti-depressant, herbicidal, insecticidal, fungicidal, antibacterial and anti-inflammatory activities offered by it. Various antibacterial agents have been synthesized by researchers to curb bacterial diseases but due to rapid development in drug resistance, tolerance and side effects, there had always been a need for the synthesis of a new class of antibacterial agents that would exhibit improved pharmacological action. Therefore, this review mainly focuses on the various methods for the synthesis of triazine derivatives and their antibacterial activity.

scholarly journals Construction of a New Class of Tetracycline Lead Structures with Potent Antibacterial Activity through Biosynthetic Engineering

2015 ◽  
Vol 127 (13) ◽  
pp. 4009-4012 ◽  
Author(s):  
Urška Lešnik ◽  
Tadeja Lukežič ◽  
Ajda Podgoršek ◽  
Jaka Horvat ◽  
Tomaž Polak ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
New Class ◽  
Biosynthetic Engineering

scholarly journals SAR Studies for a New Class of Antibacterial NAD Biosynthesis Inhibitors

2009 ◽  
Vol 11 (4) ◽  
pp. 617-625 ◽  
Author(s):  
Whitney Beysselance Moro ◽  
Zhengrong Yang ◽  
Tasha A. Kane ◽  
Qingxian Zhou ◽  
Steve Harville ◽  
...  
Keyword(s):  
New Class ◽  
Nad Biosynthesis ◽  
Sar Studies ◽  
Biosynthesis Inhibitors

scholarly journals Benzanthrins A and B, a new class of quinone antibiotics. I Discovery, fermentation and antibacterial activity.

1986 ◽  
Vol 39 (11) ◽  
pp. 1509-1514 ◽  
Author(s):  
ROBERT J. THERIAULT ◽  
RONALD R. RASMUSSEN ◽  
WILLIAM L. KOHL ◽  
JOSEPH F. PROKOP ◽  
THOMAS B. HUTCH ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
New Class

Improved supercapacitor potential and antibacterial activity of bimetallic CNFs–Sn–ZrO2 nanofibers: fabrication and characterization

RSC Advances ◽  
2014 ◽  
Vol 4 (33) ◽  
pp. 17268-17273 ◽  
Author(s):  
Young-Sang Jang ◽  
Touseef Amna ◽  
M. Shamshi Hassan ◽  
Ja-Lam Gu ◽  
Ick-Soo Kim ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
One Dimensional ◽  
New Class ◽  
Fabrication And Characterization

The objective of our study was to develop a new class of one-dimensional Sn–ZrO2 nanocrystal decorated CNFs.

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