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More info on N-Phenethyl-14-ethoxymetopon

N-Phenethyl-14-ethoxymetopon: Wikis


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Systematic (IUPAC) name
(5α)-14-ethoxy- 3-hydroxy- 5-methyl- 17-(2-phenylethyl)- 4,5-epoxymorphinan- 6-one
CAS number  ?
ATC code  ?
PubChem 11049533
Chemical data
Formula C 27H31NO4  
Mol. mass 433.538 g/mol
SMILES eMolecules & PubChem
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.  ?
Legal status
Routes  ?

N-Phenethyl-14-ethoxymetopon is a drug which is a derivative of metopon. It is a potent analgesic, around 60 times stronger than morphine and produces significantly less constipation.[1]

N-Phenethyl-14-ethoxymetopon acts as an agonist at both μ- and δ-opioid receptors, with a Ki of 0.16nM at μ and 3.14nM at δ.[2]


  1. ^ Ananthan S. Opioid ligands with mixed mu/delta opioid receptor interactions: an emerging approach to novel analgesics. AAPS Journal. 2006 Mar 10;8(1):E118-25. PMID 16584118
  2. ^ Lattanzi R, Spetea M, Schüllner F, Rief SB, Krassnig R, Negri L, Schmidhammer H. Synthesis and biological evaluation of 14-alkoxymorphinans. 22.(1) Influence of the 14-alkoxy group and the substitution in position 5 in 14-alkoxymorphinan-6-ones on in vitro and in vivo activities. Journal of Medicinal Chemistry. 2005 May 5;48(9):3372-8. PMID 15857143


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