Tenuazonic acid

Tenuazonic acid
Names
Preferred IUPAC name
(5S)-3-Acetyl-5-[(2S)-butan-2-yl]-4-hydroxy-1,5-dihydro-2H-pyrrol-2-one
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.164.201 Edit this at Wikidata
UNII
  • InChI=1S/C10H15NO3/c1-4-5(2)8-9(13)7(6(3)12)10(14)11-8/h5,8,13H,4H2,1-3H3,(H,11,14)/t5-,8-/m0/s1 ☒N
    Key: CEIZFXOZIQNICU-XNCJUZBTSA-N ☒N
  • O=C1C(C(C)=O)=C(O)[C@@]([C@H](CC)C)([H])N1
Properties
C10H15NO3
Molar mass 197.234 g·mol−1
Appearance White crystalline powder
Acidity (pKa) 3.5
Hazards
Lethal dose or concentration (LD, LC):
* 182 mg kg−1 (Mice, ♂, oral)[1]
  • 225 mg kg−1 (Mice, ♂, oral)[2]
  • 81 mg kg−1 (Mice, ♀, oral)[1]
Pharmacology
Ingested or Inhaled
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Tenuazonic acid is a mycotoxin produced by Alternaria species.[3] It is a powerful eukaryotic protein synthesis inhibitor.[4] It is a tetrameric acid that is ubiquitous in biological environments and prevents the release of newly synthesized protein from the ribosome. Its toxicity is the highest among all Alternaria mycotoxins and has both phytotoxic and cytotoxic properties.[5] In 1991 Tenuazonic acid was reported to inhibit skin tumor promotion in mice.[6]

  1. ^ a b Miller, F. A. et al.; Nature, 200 (1963), S. 1338–1339
  2. ^ Smith, E. R. et al.; Cancer Chemother. Rep. 52 (1968), S. 579–585.
  3. ^ Alisa D. Hocking (Editor), John I. Pitt (Editor) and Robert A. Samson (Editor): Advances in Food Mycology. Springer 2006; ISBN 978-0-387-28385-2; p. 23
  4. ^ Dilip K. Arora and Arora K. Arora: Fungal Biotechnology in Agricultural, Food, and Environmental Applications. Marcel Dekker Inc; illustrated edition 2003; ISBN 978-0-8247-4770-1; p. 336
  5. ^ Mikula, Hannes; Horkel, Ernst; Hans, Philipp; Hametner, Christian; Fröhlich, Johannes (2013-04-15). "Structure and tautomerism of tenuazonic acid--a synergetic computational and spectroscopic approach". Journal of Hazardous Materials. 250–251: 308–317. Bibcode:2013JHzM..250..308M. doi:10.1016/j.jhazmat.2013.02.006. ISSN 1873-3336. PMID 23474405.
  6. ^ Tenuazonic acid page from Fermentek

Tenuazonic acid

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