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Valnoctamide

From Wikipedia, the free encyclopedia
Valnoctamide
Skeletal formula of valnoctamide
Skeletal formula of valnoctamide
Names
Preferred IUPAC name
2-Ethyl-3-methylpentanamide[1]
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard100.021.849Edit this at Wikidata
EC Number
  • 224-033-7
KEGG
MeSHvalnoctamide
RTECS number
  • YV5950000
UNII
  • InChI=1S/C8H17NO/c1-4-6(3)7(5-2)8(9)10/h6-7H,4-5H2,1-3H3,(H2,9,10) checkY
    Key: QRCJOCOSPZMDJY-UHFFFAOYSA-N checkY
  • CCC(C)C(CC)C(N)=O
Properties
C8H17NO
Molar mass143.230 g·mol−1
AppearanceWhite crystals
logP1.885
Pharmacology
N05CM13 (WHO)
  • Intravenous
  • Oral
Pharmacokinetics:
94%
Hepatic
10 hours
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H302
Lethal dose or concentration (LD, LC):
760 mg kg−1(oral, rat)
Related compounds
Related alkanamides
Valpromide
Related compounds
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Chemical compound

Valnoctamide (INN,USAN) has been used in France as asedative-hypnotic since 1964.[2] It is astructural isomer ofvalpromide, avalproic acidprodrug; unlike valpromide, however, valnoctamide is not transformed into itshomologous acid,valnoctic acid,in vivo.[3]

Indications

[edit]

In addition to being a sedative, valnoctamide has been investigated for use inepilepsy.[4][5][6]

It was studied forneuropathic pain in 2005 by Winkler et al., with good results: it had minimal effects onmotor coordination and alertness at effective doses, and appeared to be equally effective asgabapentin.[7]

RH Belmaker, Yuly Bersudsky and Alex Mishory started a clinical trial of valnoctamide forprophylaxis ofmania in lieu of the much more teratogenic valproic acid or its salts.[8]

Side effects

[edit]

Theside effects of valnoctamide are mostly minor and includesomnolence and the slight motor impairments mentioned above.

Interactions

[edit]

Valnoctamide is known to increase through inhibition ofepoxidehydrolase the serum levels of carbamazepine-10,11-epoxide, theactive metabolite ofcarbamazepine, sometimes to toxic levels.[9]

Chemistry

[edit]

Valnoctamide is aracemic compound with fourstereoisomers,[10] all of which were shown to be more effective than valproic acid in animal models of epilepsy and one of which [(2S,3S]-valnoctamide) was considered to be a good candidate by Isoherranen, et al. for an anticonvulsant in August 2003.[11]

Butabarbital can be hydrolyzed to Valnoctamide.[12]

References

[edit]
  1. ^"valnoctamide - Compound Summary".PubChem Compound. USA: National Center for Biotechnology Information. 26 March 2005. Identification and Related Records. Retrieved20 February 2012.
  2. ^Harl, F. M. (March 1964). "[Clinical Study Of Valnoctamide On 70 Neuropsychiatric Clinic Patients Undergoing Ambulatory Treatment]".La Presse Médicale (in French).72:753–754.PMID 14119722.
  3. ^Haj-Yehia, Abdullah; Meir Bialer (August 1989). "Structure-pharmacokinetic relationships in a series of valpromide derivatives with antiepileptic activity".Pharmaceutical Research.6 (8):683–689.doi:10.1023/A:1015934321764.PMID 2510141.S2CID 21531402.
  4. ^Mattos Nda, S. (May 1969). "[Use of Valnoctamide (nirvanil) in oligophrenic erethics and epileptics]".Hospital (Rio J) (in Portuguese).75 (5):1701–1704.PMID 5306499.
  5. ^Lindekens, H.; Ilse Smolders; Ghous M. Khan; Meir Bialer; Guy Ebinger; Yvette Michotte (November 2000). "In vivo study of the effect of valpromide and valnoctamide in the pilocarpine rat model of focal epilepsy".Pharmaceutical Research.17 (11):1408–1413.doi:10.1023/A:1007559208599.PMID 11205735.S2CID 24229165.
  6. ^Rogawski, MA (2006)."Diverse mechanisms of antiepileptic drugs in the development pipeline".Epilepsy Res.69 (3):273–294.doi:10.1016/j.eplepsyres.2006.02.004.PMC 1562526.PMID 16621450.
  7. ^Winkler, Ilan; Simcha Blotnik; Jakob Shimshoni; Boris Yagen; Marshall Devor; Meir Bialer (September 2005)."Efficacy of antiepileptic isomers of valproic acid and valpromide in a rat model of neuropathic pain".British Journal of Pharmacology.146 (2):198–208.doi:10.1038/sj.bjp.0706310.PMC 1576263.PMID 15997234.
  8. ^RH Belmaker; Yuly Bersudsky; Alex Mishory; Beersheva Mental Health Center (2005)."Valnoctamide in Mania".ClinicalTrials.gov. United States National Institutes of Health. Retrieved25 February 2006.
  9. ^Pisani, F; Fazio, A; Artesi, C; Oteri, G; Spina, E; Tomson, T; Perucca, E (1992)."Impairment of carbamazepine-10, 11-epoxide elimination by valnoctamide, a valpromide isomer, in healthy subjects".British Journal of Clinical Pharmacology.34 (1):85–87.doi:10.1111/j.1365-2125.1992.tb04114.x.PMC 1381382.PMID 1352988.
  10. ^Shimon Barel, Boris Yagen, Volker Schurig, Stephan Sobak, Francesco Pisani, Emilio Perucca and Meir Bialer (1997)."Stereoselective pharmacokinetic analysis of valnoctamide in healthy subjects and in patients with epilepsy".Clinical Pharmacology & Therapeutics.61 (4):442–449.doi:10.1016/S0009-9236(97)90194-6.PMID 9129561.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  11. ^Isoherranen, Nina; H. Steve White; Brian D. Klein; Michael Roeder; José H. Woodhead; Volker Schurig; Boris Yagen; Meir Bialer (August 2003). "Pharmacokinetic-pharmacodynamic relationships of (2S,3S)-valnoctamide and its stereoisomer (2R,3S)-valnoctamide in rodent models of epilepsy".Pharmaceutical Research.20 (8):1293–1301.doi:10.1023/A:1025069519218.PMID 12948028.S2CID 20755032.
  12. ^Freifelder, Morris; Geiszler, Adolph O.; Stone, George R. (1961). "Hydrolysis of 5,5-Disubstituted Barbituric Acids".The Journal of Organic Chemistry.26 (1):203–206.doi:10.1021/jo01060a048.ISSN 0022-3263.


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