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词条 2-Oxazolidone
释义

  1. Oxazolidinones

     Evans auxiliaries  Pharmaceuticals  History 

  2. See also

  3. References

  4. External links

{{chembox
| Watchedfields = changed
| verifiedrevid = 477215129
| Name = 2-Oxazolidone
| ImageFileL1 = 2-Oxazolidone structure.svg
| ImageFileR1 = Oxazolidin-2-one-3D-balls.png
| ImageName =
| IUPACName = 1,3-Oxazolidin-2-one
| OtherNames = 2-Oxazolidone
2-Oxazolidinone
|Section1={{Chembox Identifiers
| SMILES = O=C1OCCN1
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = C06695
| InChI = 1/C3H5NO2/c5-3-4-1-2-6-3/h1-2H2,(H,4,5)
| InChIKey = IZXIZTKNFFYFOF-UHFFFAOYAE
| PubChem = 73949
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C3H5NO2/c5-3-4-1-2-6-3/h1-2H2,(H,4,5)
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = IZXIZTKNFFYFOF-UHFFFAOYSA-N
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 497-25-6
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 66579
| RTECS =
|Section2={{Chembox Properties
| Formula = C3H5NO2
| MolarMass = 87.077 g/mol
| Appearance = Solid
| Density =
| Solubility =
| MeltingPtC = 86 to 89
| BoilingPtC = 220
| BoilingPt_notes = at 48 torr
| pKa =
| pKb =
|Section3={{Chembox Structure
| CrystalStruct =
| Dipole =
|Section7={{Chembox Hazards
| ExternalSDS =
| MainHazards =
| FlashPt =
| RPhrases =
| SPhrases =
|Section8={{Chembox Related
| OtherCompounds = Oxazolidine
}}

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

Oxazolidinones

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.

Pharmaceuticals

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 antibiotics.[2]

Examples of antibiotic oxazolidinones include:

  • Linezolid (Zyvox), which is available for intravenous administration and also has the advantage of having excellent oral bioavailability.
  • Posizolid, which appears to have excellent, targeted bactericidal activity against all common gram-positive bacteria, regardless of resistance to other classes of antibiotics.[3]
  • Tedizolid, (Sivextro) which is approved for acute skin infections
  • Radezolid (RX-1741) has completed some phase-II clinical trials.[4]
  • Cycloserine is a second line drug against tuberculosis. Note that cycloserine, while technically an oxazolidone, has a different mechanism of action and substantially different properties from the aforementioned compounds.
  • (S)-5-((isoxazol-3-ylamino)methyl)-3-(2,3,5-trifluoro-4-(4-oxo-3,4-dihydropyridin-1(2H)-yl)phenyl)oxazolidin-2-one (MRX-I) has reported phase 1 data[5] and completed phase II trials in 2015, and is starting a phase 3 trial in 2016.[6]

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

History

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).

{{clear|left}}

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

In 2002 AstraZeneca introduced{{clarify|date=October 2016}} posizolid (AZD2563).

See also

  • Oxazolidine - the ring without the carbonyl group
  • Oxazolone - the unsaturated analogues

References

1. ^{{Cite journal | last1 = Shinabarger | first1 = D. | doi = 10.1517/13543784.8.8.1195 | title = Mechanism of action of the oxazolidinone antibacterial agents | journal = Expert Opinion on Investigational Drugs | volume = 8 | issue = 8 | pages = 1195–1202 | year = 1999 | pmid = 15992144}}
2. ^{{cite book|title=Antibiotics: Targets, Mechanisms and Resistance|chapter=A Chemist’s Survey of Different Antibiotic Classes|author=Sonia Ilaria Maffioli|editors = Claudio O. Gualerzi, Letizia Brandi, Attilio Fabbretti, Cynthia L. Pon|year=2014|publisher=Wiley-VCH|isbn=9783527659685}}
3. ^{{cite journal |author1=Wookey, A. |author2=Turner, P. J. |author3=Greenhalgh, J. M. |author4=Eastwood, M. |author5=Clarke, J. |author6=Sefton, C. | title = AZD2563, a novel oxazolidinone: definition of antibacterial spectrum, assessment of bactericidal potential and the impact of miscellaneous factors on activity in vitro | journal = Clinical Microbiology and Infection | year = 2004 | volume = 10 | issue = 3 | pages = 247–254 | pmid=15008947 | doi = 10.1111/j.1198-743X.2004.00770.x}}
4. ^{{cite web|url=http://www.rib-x.com/pipeline/rx_1741 |title=Rx 1741 |publisher=Rib-X Pharmaceuticals |year=2009 |accessdate=2009-05-17 |deadurl=yes |archiveurl=https://web.archive.org/web/20090226201337/http://www.rib-x.com/pipeline/rx_1741 |archivedate=2009-02-26 |df= }}
5. ^{{cite journal|doi=10.1021/jm401931e | volume=57 | issue=11 | title=New Potent Antibacterial Oxazolidinone (MRX-I) with an Improved Class Safety Profile | year=2014 | journal=Journal of Medicinal Chemistry | pages=4487–4497 | last1 = Gordeev | first1 = Mikhail F. | last2 = Yuan | first2 = Zhengyu Y.}}
6. ^MicuRx Initiates Phase 3 Clinical Trial for MRX-I... 2016
7. ^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

  • [https://www.organic-chemistry.org/synthesis/heterocycles/oxazolidinones.shtm Synthesis of Oxazolidinones - Recent Literature]
{{Protein synthesis inhibitor antibiotics}}{{DEFAULTSORT:Oxazolidone, 2-}}

2 : Articles with validated CAS Registry Numbers|Oxazolidinones

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