Chemicals and Drugs

4-Quinolones

QUINOLONES containing a 4-oxo (a carbonyl in the para position to the nitrogen). They inhibit the A subunit of DNA GYRASE and are used as antimicrobials. Second generation 4-quinolones are also substituted with a 1-piperazinyl group at the 7-position and a fluorine at the 6-position.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

QUINOLONES containing a 4-oxo (a carbonyl in the para position to the nitrogen). They inhibit the A subunit of DNA GYRASE and are used as antimicrobials. Second generation 4-quinolones are also substituted with a 1-piperazinyl group at the 7-position and a fluorine at the 6-position.

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Classification

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MeSH Record

Synonyms

11 entry terms
  • 4-Oxoquinoline
  • 4-Oxoquinolines
  • 4-Quinolinone
  • 4-Quinolinones
  • 4-Quinolone
  • 4 Oxoquinoline
  • 4 Oxoquinolines
  • 4 Quinolinone
  • 4 Quinolinones
  • 4 Quinolone
  • 4 Quinolones

MeSH Record

Aspects Covered

24 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, antagonists & inhibitors, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, economics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Record

History Note

2004

MeSH Hierarchy

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AMA Style

References

  1. National Library of Medicine. 4-Quinolones. Medical Subject Headings (MeSH). 2026. Unique ID D042462. http://id.nlm.nih.gov/mesh/2026/D042462
  2. 4-Quinolones. In: Wikipedia. https://en.wikipedia.org/wiki/Quinolone_antibiotic
  3. 4-Quinolones. In: Wikidata. https://www.wikidata.org/wiki/Q13669486