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Ethinamate

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Pharmaceutical drug Pharmaceutical compound
Ethinamate
Clinical data
AHFS/Drugs.comMicromedex Detailed Consumer Information
Routes of
administration
Oral
ATC code
  • none
Legal status
Legal status
Identifiers
IUPAC name
  • (1-ethynylcyclohexyl)carbamate
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.004.355 Edit this at Wikidata
Chemical and physical data
FormulaC9H13NO2
Molar mass167.208 g·mol
3D model (JSmol)
SMILES
  • O=C(OC1(C#C)CCCCC1)N
InChI
  • InChI=1S/C9H13NO2/c1-2-9(12-8(10)11)6-4-3-5-7-9/h1H,3-7H2,(H2,10,11)
  • Key:GXRZIMHKGDIBEW-UHFFFAOYSA-N
  (verify)

Ethinamate (Valamin, Valmid) is a short-acting carbamate-derivative sedative-hypnotic medication used to treat insomnia. Regular use leads to drug tolerance, and it is usually not effective for more than 7 days. Prolonged use can lead to dependence.

Ethinamate has been replaced by other medicines (particularly benzodiazepines), and it is not available in the Netherlands, the United States or Canada.

It is a schedule IV substance in the United States.

Synthesis

Ethinamate (1-ethynylcyclohexanone carbamate) is synthesized by combining acetylene with cyclohexanone to make 1-ethynylcyclohexanol, and then transforming this into a carbamate by the subsequent reaction with phosgene, and later with ammonia. Some lithium metal or similar is used to make the acetylene react with the cyclohexanone in the first step.

References

  1. Anvisa (2023-03-31). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-04-04). Archived from the original on 2023-08-03. Retrieved 2023-08-16.
  2. Lowry WT, Garriot JC (1979). "Ethinamate". Forensic Toxicology: Controlled Substances and Dangerous Drugs. Boston, MA: Springer US. p. 215. ISBN 978-1-4684-3444-6.
  3. US 2816910, Pfeiffer H, Junkman K, "Esters of carbamic acid and a method of making same", issued 17 December 1957, assigned to Schering AG 
  4. DE 1021843, Emde H, Grimme W, "Verfahren zur Herstellung des Allophanats des 1-AEthinylcyclohexanols-(1)", issued 2 January 1958, assigned to Rheinpreussen AG 


Hypnotics/sedatives (N05C)
GABAA
Alcohols
Barbiturates
Benzodiazepines
Carbamates
Imidazoles
Monoureides
Neuroactive steroids
Nonbenzodiazepines
Phenols
Piperidinediones
Quinazolinones
Others
GABAB
H1
Antihistamines
Antidepressants
Antipsychotics
α2-Adrenergic
5-HT2A
Antidepressants
Antipsychotics
Others
Melatonin
Orexin
α2δ VDCC
Others
GABAA receptor positive modulators
Alcohols
Barbiturates
Benzodiazepines
Carbamates
Flavonoids
Imidazoles
Kava constituents
Monoureides
Neuroactive steroids
Nonbenzodiazepines
Phenols
Piperidinediones
Pyrazolopyridines
Quinazolinones
Volatiles/gases
Others/unsorted
See also: Receptor/signaling modulatorsGABA receptor modulatorsGABA metabolism/transport modulators


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