Etafedrine
File:Etafedrine Structural Formulae (1R,2S).png | |
Systematic (IUPAC) name | |
---|---|
(1R,2S)-N-ethyl-N-methyl-2-amino-1-phenylpropan-1-ol | |
Identifiers | |
CAS Number | 7681-79-0 |
ATC code | none |
PubChem | CID 10734 |
Chemical data | |
Formula | C12H19NO |
Molar mass | 193.285 g/mol[[Script error: No such module "String".]] |
Etafedrine (INN) or ethylephedrine is a long-acting bronchodilator and has the brand name Nethaprin. It was previously commercially available as both the free base and as the hydrochloride salt from Sanofi-Aventis but is now no longer marketed.
Contents
Pharmacology
Unlike ephedrine and tyramine, etafedrine does not induce the release of epinephrine or norepinephrine and instead acts as a selective β-adrenergic receptor agonist, thereby mediating its bronchodilator effects.[1]
Synthesis
Although there are four possible stereoisomers of ethylephedrine, the pharmacological agent is the (1R, 2S) form. This isomer may be synthesized by alkylating naturally-occurring ephedrine with ethyl iodide. The hydrochloride may be prepared by passing hydrogen chloride through a solution of ethylephedrine in diethyl ether:[2]
See also
References
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Phenethylamines | Psychedelics: 2C-B • 2C-B-FLY • 2C-C • 2C-D • 2C-E • 2C-G • 2C-I • 2C-N • 2C-P • 2C-SE • 2C-T • 2C-T-2 • 2C-T-4 • 2C-T-7 • 2C-T-8 • 2C-T-9 • 2C-T-13 • 2C-T-15 • 2C-T-17 • 2C-T-21 • 2C-TFM • 2C-YN • Allylescaline • DESOXY • Escaline • Isoproscaline • Jimscaline • Macromerine • MEPEA • Mescaline • Metaescaline • Methallylescaline • Proscaline • Psi-2C-T-4 • TCB-2 Stimulants: 2-OH-PEA • β-Me-PEA • Hordenine • N-Me-PEA • Phenethylamine (PEA) Entactogens: Lophophine • MDPEA • MDMPEA Others: BOH • DMPEA |
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Amphetamines Phenylisopropylamines | Psychedelics: 3C-BZ • 3C-E • 3C-P • Aleph • Beatrice • Bromo-DragonFLY • D-Deprenyl • DMA • DMCPA • DMMDA • DOB • DOC • DOEF • DOET • DOI • DOM • DON • DOPR • DOTFM • Ganesha • MMDA • MMDA-2 • Psi-DOM • TMA • TeMA Stimulants: 4-MA • 4-MMA • 4-MTA • 5-IT • Alfetamine • Amfecloral • Amfepentorex • Amphetamine (Dextroamphetamine, Levoamphetamine) • Amphetaminil • Benfluorex • Benzphetamine • Cathine • Clobenzorex • Dimethylamphetamine • Ephedrine (EPH) • Ethylamphetamine • Fencamfamine • Fencamine • Fenethylline • Fenfluramine (Dexfenfluramine) • Fenproporex • Fludorex • Furfenorex • Isopropylamphetamine • Lefetamine • Mefenorex • Methamphetamine (Dextromethamphetamine, Levomethamphetamine) • Methoxyphenamine • MMA • Oxilofrine • Ortetamine • PBA • PCA • Phenpromethamine • PFA • PFMA • PIA • PMA • PMEA • PMMA • Phenylpropanolamine (PPA) • Prenylamine • Propylamphetamine • Pseudoephedrine (PSE) • Sibutramine • Tiflorex (Flutiorex) • Tranylcypromine • Xylopropamine • Zylofuramine Entactogens: 5-APDB • 6-APB • 6-APDB • IAP • MDA • MDEA • MDHMA (FLEA) • MDMA ("Ecstasy") • MDOH • MMDMA • NAP • TAP Others: Amiflamine • D-Deprenyl • L-Deprenyl (Selegiline) |
Phentermines | Stimulants: Chlorphentermine • Cloforex • Clortermine • Etolorex • Mephentermine • Pentorex (Phenpentermine) • Phentermine Entactogens: MDPH • MDMPH |
Cathinones | Stimulants: Amfepramone • Brephedrone • Buphedrone • Bupropion (Amfebutamone) • Cathinone (Propion) • Dimethylcathinone (Dimethylpropion, Metamfepramone) • Ethcathinone (Ethylpropion) • Flephedrone • Methcathinone (Methylpropion) • Mephedrone • Methedrone Entactogens: Ethylone • Methylone |
Phenylisobutylamines | |
Phenylalkylpyrrolidines | |
Catecholamines (and relatives..) | 6-FNE • 6-OHDA • α-Me-DA • α-Me-TRA • Adrenochrome • Ciladopa • D-DOPA (Dextrodopa) • Dopamine • Epinephrine (Adrenaline) • Epinine • Fenclonine • Ibopamine • L-DOPA (Levodopa) • L-DOPS (Droxidopa) • L-Phenylalanine • L-Tyrosine • meta-Octopamine • meta-Tyramine • Metanephrine • Metirosine • Methyldopa • Nordefrin (Levonordefrin) • Norepinephrine (Noradrenaline) • Normetanephrine • para-Octopamine • para-Tyramine |
Miscellaneous | Amidephrine • Arbutamine • Cafedrine • Denopamine • Dobutamine • Dopexamine • Etafedrine • Ethylnorepinephrine • Etilefrine • Famprofazone • Gepefrine • Isoprenaline (Isoproterenol) • Isoetarine • Metaraminol • Metaterol • Methoxamine • Norfenefrine • Orciprenaline • Phenylephrine (Neosynephrine) • Phenoxybenzamine • Prenalterol • Pronethalol • Propranolol • Salbutamol (Albuterol; Levosalbutamol) • Synephrine (Oxedrine) • Theodrenaline • Xamoterol |
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- ↑ Lindmar R, Löffelholz K, Stieh-Koch U (1985). "On the mechanism of bronchodilatation by etafedrine". Arzneimittel-Forschung. 35 (3): 602–4. PMID 4039586. CS1 maint: Multiple names: authors list (link)
- ↑ Takeo Ueda,Shigeshi Toyoshima,Kiyoshi Takahashi and Masako Muraoka (1955). "Studies on Syntheses and Pharmacological Effects of N-Alkylephedrines and their Ammonium Salt Derivatives" (Free full text). Pharm. Bull. (Japan). 3 (6): 465–468. CS1 maint: Multiple names: authors list (link)
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