IUPAC name
Other names
497-25-6 YesY
3D model (Jmol) Interactive image
ChemSpider 66579 YesY
ECHA InfoCard 100.007.129
KEGG C06695 YesY
PubChem 73949
Molar mass 87.077 g/mol
Appearance Solid
Melting point 86 to 89 °C (187 to 192 °F; 359 to 362 K)
Boiling point 220 °C (428 °F; 493 K) at 48 torr
Related compounds
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

2-Oxazolidone is a heterocyclic organic compound containing both nitrogen and oxygen in a 5-membered ring.


Evans auxiliaries

Oxazolidinones are a class of compounds containing 2-oxazolidone in the structure. In chemistry, they are useful as Evans auxiliaries, which are used for chiral synthesis. Usually, the acid chloride substrate reacts with the oxazolidinone to form an imide. Substituents at the 4 and 5 position of the oxazolidinone direct any aldol reaction to the alpha position of the carbonyl of the substrate.


Oxazolidinones are mainly used as antimicrobials. The antibacterial effect of oxazolidinones is by working as protein synthesis inhibitors, targeting an early step involving the binding of N-formylmethionyl-tRNA to the ribosome.[1] (See Linezolid#Mechanism_of_action)

Some of the most important oxazolidinones are the last generation of antibiotics used against gram-positive pathogens, including superbugs such as methicillin-resistant Staphylococcus aureus. These antibiotics are considered as a choice of last resort where every other antibiotic therapy has failed.

Examples of antibiotic oxazolidinones include:

Chemical structure of tedizolid

An oxazolidinone derivative used for other purposes is rivaroxaban, which is approved by the FDA for venous thromboembolism prophylaxis.


Chemical structure of cycloserine

The first ever used oxazolidinone was cycloserine (4-amino-1,2-oxazolidin-3-one), a second line drug against tuberculosis since 1956.[6]

Developed during the nineties when several bacterial strains were becoming resistant against such antibiotics as vancomycin. Linezolid (Zyvox) is the first approved agent in the class (FDA approval April 2000).

Chemical structure of linezolid

The first commercially available 1,3-oxazolidinone antibiotic was linezolid, discovered and developed by Pharmacia & Upjohn.

Chemical structure of posizolid/AZD2563

In 2002 AstraZeneca introduced posizolid (AZD2563).

See also


  1. Shinabarger, D. (1999). "Mechanism of action of the oxazolidinone antibacterial agents". Expert Opinion on Investigational Drugs. 8 (8): 1195–1202. doi:10.1517/13543784.8.8.1195. PMID 15992144.
  2. Wookey, A.; Turner, P. J.; Greenhalgh, J. M.; Eastwood, M.; Clarke, J.; Sefton, C. (2004). "AZD2563, a novel oxazolidinone: definition of antibacterial spectrum, assessment of bactericidal potential and the impact of miscellaneous factors on activity in vitro". Clinical Microbiology and Infection. 10 (3): 247–254. doi:10.1111/j.1198-743X.2004.00770.x. PMID 15008947.
  3. "Rx 1741". Rib-X Pharmaceuticals. 2009. Retrieved 2009-05-17.
  4. New Potent Antibacterial Oxazolidinone (MRX-I) with an Improved Class Safety Profile. 2014
  5. MicuRx Initiates Phase 3 Clinical Trial for MRX-I... 2016
  6. A. W. Frahm, H. H. J. Hager, F. v. Bruchhausen, M. Albinus, H. Hager: Hagers Handbuch der pharmazeutischen Praxis: Folgeband 4: Stoffe A-K., Birkhäuser, 1999, ISBN 978-3-540-52688-9

External links

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