Ethinamate
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 dependency.
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| AHFS/Drugs.com | Micromedex Detailed Consumer Information |
| Routes of administration | Oral |
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| ECHA InfoCard | 100.004.355  |
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| Formula | C9H13NO2 |
| Molar mass | 167.208 g·mol−1 |
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Ethinamate has been replaced by other medicines (particularly benzodiazepines), and it is not available in the Netherlands, the United States or Canada.
Synthesis
Ethinamate (1-ethynylcyclohexanone carbamate) is synthesized by combining acetylene with cyclohexanone and then transforming the resulting product 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.[1][2]
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References
- H. Pfeiffer, K. Junkman, U.S. Patent 2,816,910 (1957)
- H. Emde, W. Grimme, DE 1021843 (1953)
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