Amphenicol

Amphenicols are a class of antibiotics with a phenylpropanoid structure. They function by blocking the enzyme peptidyl transferase on the 50S ribosome subunit of bacteria.^[1]

Examples of amphenicols include chloramphenicol, thiamphenicol, azidamfenicol and florfenicol. The first-in-class compound was chloramphenicol, introduced in 1949. Chloramphenicol was initially discovered as a natural product, but all amphenicols are now made by chemical synthesis.

References

↑ APVMA: Florfenicol

Antibacterials: protein synthesis inhibitors (J01A, J01B, J01F, J01G, QJ01XQ)

30S

Aminoglycosides
(initiation inhibitors)

-mycin (Streptomyces)	Streptomycin^# Dihydrostreptomycin Neomycin^# Framycetin Paromomycin Ribostamycin Kanamycin^# Amikacin Arbekacin Bekanamycin Dibekacin Tobramycin Spectinomycin^# Hygromycin B Paromomycin

-micin (Micromonospora)	Gentamicin^# Netilmicin Sisomicin Plazomicin^† Isepamicin Verdamicin Astromicin

Tetracycline antibiotics
(tRNA binding)

Tetracyclines	Doxycycline^# Chlortetracycline Clomocycline Demeclocycline Lymecycline Meclocycline Metacycline Minocycline Oxytetracycline Penimepicycline Rolitetracycline Tetracycline

Glycylcyclines	Tigecycline

Fluorocyclines	Eravacycline^†

50S

Oxazolidinone
(initiation inhibitors)

Peptidyl transferase

Amphenicols	Chloramphenicol^# Azidamfenicol Thiamphenicol Florfenicol

Pleuromutilins	Retapamulin Tiamulin Valnemulin

MLS (transpeptidation/translocation)

Macrolides	Azithromycin^# Clarithromycin Dirithromycin Erythromycin^# Flurithromycin Josamycin Midecamycin Miocamycin Oleandomycin Rokitamycin Roxithromycin Spiramycin Troleandomycin Tylosin Ketolides Telithromycin Cethromycin Solithromycin^†

Lincosamides	Clindamycin^# Lincomycin Pirlimycin

Streptogramins	Pristinamycin Quinupristin/dalfopristin Virginiamycin

EF-G

Steroid antibacterials	Fusidic acid

^#WHO-EM
^‡Withdrawn from market
Clinical trials:
- ^†Phase III
- ^§Never to phase III

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