Semorphone

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Image:Semorphone.svg
Semorphone
Systematic (IUPAC) name
(5α)-4,6-Epoxy-3,14-dihydroxy-17-(2-methoxyethyl)morphinan-6-one
Identifiers
CAS number	88939-40-6
ATC code	?
PubChem	5491906
Chemical data
Formula	C19H23NO5
Mol. mass	345.39 g/mol
Synonyms	Semorphone, Mr 2264
Pharmacokinetic data
Bioavailability	?
Metabolism	?
Half life	?
Excretion	?
Therapeutic considerations
Pregnancy cat.	?
Legal status
Routes	?

Semorphone (Mr 2264) is an opiate analogue that is an N-substituted derivative of oxymorphone.

Semorphone is a partial agonist at μ-opioid receptors. It is around twice the potency of morphine, but with a ceiling effect on both analgesia and respiratory depression^[1] which means that these effects stop becoming any stronger after a certain maximum dose.

It is not currently used in medicine, and is not a controlled drug, although it might be considered to be a controlled substance analogue of oxymorphone on the grounds of its related chemical structure in some jurisdictions such as the USA, Canada, Australia and New Zealand.

References

v • d • e Opioids (N02A)
Opiate derivatives	Whole Opium Preparations Dover's Powder • Granulated Opium • Laudanum • Mithridate • Opium • Paregoric • Poppy Straw Concentrate • Poppy tea • Powdered Opium • Raw Opium • Smoking Opium Natural Opiates Codeine • Morphine • Narceine • Noscapine • Omnopon • Oripavine • Pantopon • Papaveretum • Pseudomorphine • Tetrapon • Thebaine Semisynthetics 2,4-Dinitrophenylmorphine • 14-Hydroxyazidomorphine • 14-Ethoxymetopon • 14-Methoxymetopon • 14-Phenylpropoxymetopon • 6-Ketonalbuphine • 6-Methyldihydromorphine • 6-Methylenedihydrodesoxymorphine • 6-Methylene-14-hydroxydihydrodesoxymorphine • 8,14-Dihydroxydihydromorphinone • Acetylcodeine • Acetyldihydrocodeine • Acetylmorphone • Azidocodeine • Azidomorphine • Benzylmorphine • Chloromorphide • Clocinnamox • Codeine • Codeinone • Codorphone • Codoxime • Desocodeine • Desomorphine • Diacetyldihydromorphine • Dihydrocodeine • Dihydrocodeinone enol acetate • Dihydrohydroxycodeinone • Dihydrodesoxymorphine • Dihydroheroin • Dihydroheterocodeine • Dihydroisocodeine • Dihydromorphine • Dibutanoylmorphine • Dipropanoylmorphine • Ethyldihydromorphinone • Ethyldihydromorphine • Ethylmorphine • Heroin (Diamorphine) • Heroin-7,8-Oxide • Heterocodeine • Hydrocodone • Hydromorphinol • Hydromorphone • Isocodeine • Methyldesorphine • Methyldihydromorphine • Methylnaltrexone • Metopon • Morphinone • Myrophine • N-Phenethyl-14-ethoxymetopon • Nalbuphine • Nalfurafine • Nalmefene • Nalodeine • Nalorphine • Naloxone • Naltrexone • Naltrindole • Nicocodeine • Nicodicodeine • Nicomorphine • Oxycodone • Oxymorphone • Pholcodine • Semorphone • Thebacon Opiate metabolites Codeine-N-Oxide • Morphine-3-glucuronide • Morphine-6-glucuronide • Monoacetylmorphine • Morphine-N-Oxide • Naltrexol • Norcodeine • Normorphine
Morphinans	Aknadinine • Butorphanol • Cyclorphan • Cyprodime • Dextro-3-hydroxy-N-allylmorphinan • Dextromethorphan • Dextrorphan • Dimemorfan • Drotebanol • Levargorphan • Levallorphan • Levorphanol • Levorphan • Levophenacylmorphan • Levomethorphan • Norlevorphanol • Oxilorphan • Phenomorphan • Racemethorphan • Racemorphan • Salutaridine (Sinoacutine) • Sinococuline • Sinomenine (Cocculine)
Benzomorphans	5,9-DEHB • Anazocine • Bremazocine • Cogazocine • Cyclazocine • Dezocine • Eptazocine • Etazocine • Ethylketocyclazocine • Fluorophen • Ketazocine • Metazocine • Pentazocine • Phenazocine • Quadazocine • Thiazocine
4-Phenylpiperidines	Pethidines (Meperidines) Allylnorpethidine • Anileridine • Benzethidine • Carperidine • Difenoxin • Diphenoxylate • Etoxeridine (Carbetidine) • Furethidine • Hydroxypethidine (Bemidone) • Hydroxymethoxypethidine • Morpheridine • Oxpheneridine (Carbamethidine) • Meperidine-N-Oxide • Pethidine (Meperidine) • Pethidine Intermediate A • Pethidine Intermediate B (Norpethidine) • Pethidine Intermediate C (Pethidinic Acid) • Pheneridine • Phenoperidine • Piminodine • Properidine (Ipropethidine) • Sameridine Prodines Allylprodine • α-meprodine • α-prodine • β-meprodine • β-prodine • Isopromedol • Meprodine • MPPP • PEPAP • Prodine • Prosidol • Trimeperidine (Promedol) Ketobemidones Acetoxyketobemidone • Droxypropine • Ketobemidone • Methylketobemidone • Propylketobemidone Others Alvimopan • Loperamide • Picenadol
Open Chain Opioids	Amidones Dextromethadone • Dipipanone • Hexalgon • Isomethadone • Levomethadone • Methadone • Methadone intermediate • Normethadone • Norpipanone • Phenadoxone (Heptazone) • Pipidone Methadols Acetylmethadol • α-methadol • α-acetylmethadol • β-methadol • β-acetylmethadol • Dimepheptanol (Racemethadol) • Levo-α-acetylmethadol • Noracymethadol Moramides Dextromoramide • Levomoramide • Moramide intermediate • Racemoramide Thiambutenes Thiambutene • Diethylthiambutene • Dimethylthiambutene • Ethylmethylthiambutene • Tipepidine Phenalkoxams Dextropropoxyphene • Dimenoxadol • Dioxaphetyl Butyrate • Levopropoxyphene • Propoxyphene Ampromides Diampromide • Phenampromide • Propiram Others IC-26 • Lefetamine • R-4066
Anilidopiperidines	3-Allylfentanyl • 3-Methylfentanyl • 3-Methylthiofentanyl • Alfentanil • α-methylacetylfentanyl • α-methylfentanyl • α-methylthiofentanyl • Benzylfentanyl • β-hydroxyfentanyl • β-hydroxythiofentanyl • β-methylfentanyl • Brifentanil • Carfentanil • Fentanyl • Lofentanil • Mirfentanil • Ohmefentanyl • Parafluorofentanyl • Phenaridine • Remifentanil • Sufentanil • Thenylfentanyl • Thiofentanyl • Trefentanil
Oripavine derivatives	7-PET • Acetorphine • Alletorphine • BU-48 • Buprenorphine • Cyprenorphine • Dihydroetorphine • Diprenorphine • Etorphine • N-cyclopropylmethyl-noretorphine • Nepenthone • Norbuprenorphine • Thevinone
Phenazepines	Ethoheptazine • Meptazinol • Metheptazine • Metethoheptazine • Proheptazine
Pirinitramides	Bezitramide • Piritramide
Benzimidazoles	Clonitazene • Etonitazene
Indoles	7-Acetoxymitragynine • 7-Hydroxymitragynine • Akuammidine • Akuammine • Eseroline • Ibogaine • Mitragynine • ψ-Akuammigine
Diphenylmethylpiperazines	BW373U86 • DPI-221 • DPI-287 • DPI-3290 • SNC-80
Opioid Peptides	Casomorphin • DADLE • DALDA • DAMGO • Dermenkephalin • Dermorphin • Deltorphin • DPDPE • Dynorphin • Endomorphin • Endorphin • Enkephalin • TRIMU 5
Others	4-(p-Bromophenyl)-4-(dimethylamino)-1-phenethylcyclohexanol • C-8813 • Ciramadol • Enadoline • Faxeladol • Herkinorin • JTC-801 • Methopholine • NNC 63-0532 • Noscapine/Narcotine • O-Desmethyltramadol • Salvinorin A • RWJ-394,674 • Tapentadol • Tifluadom • Tilidine • Tramadol • Viminol • W-18 • Zipeprol
Narcotic Antagonists	5'-Guanidinonaltrindole • β-Funaltrexamine • Binaltorphimine • Cyclazocine • Cyclohexyl-alpha-phenethylallylamine • Diprenorphine • M5050 • Levallorphan • Nalmefene • Naloxazone • Naloxonazine • Naloxone • Nalorphine • Naltrexone • Naltrindole • Norbinaltorphimine • Oxilorphan