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Design and synthesis of novel quinoline-aminopiperidine hybrid analogues as Mycobacterium tuberculosis DNA gyraseB inhibitors.

Author
Abstract
:

Antibiotics with good therapeutic value and novel mechanism of action are becoming increasingly important in today's battle against bacterial resistance. One of the popular targets being DNA gyrase, is currently becoming well-established and clinically validated for the development of novel antibacterials. In the present work, a series of forty eight quinoline-aminopiperidine based urea and thiourea derivatives were synthesized as pharmacophoric hybrids and evaluated for their biological activity. Compound, 1-(4-chlorophenyl)-3-(1-(6-methoxy-2-methylquinolin-4-yl)piperidin-4-yl)thiourea (45) was found to exhibit promising in vitro Mycobacterium smegmatis GyrB IC₅₀ of 0.95 ± 0.12 μM and a well correlated Mycobacterium tuberculosis (MTB) DNA gyrase supercoiling IC₅₀ of 0.62 ± 0.16 μM. Further, compound 45 also exhibited commendable MTB MIC, safe eukaryotic cytotoxic profile with no signs of cardiotoxicity in zebrafish ether-a-go-go-related gene (zERG).

Year of Publication
:
2015
Journal
:
Bioorganic & medicinal chemistry
Volume
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23
Issue
:
9
Number of Pages
:
2062-78
Date Published
:
2015
ISSN Number
:
0968-0896
URL
:
https://linkinghub.elsevier.com/retrieve/pii/S0968-0896(15)00169-8
DOI
:
10.1016/j.bmc.2015.03.004
Short Title
:
Bioorg Med Chem
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