Thebaine

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Thebaine

IUPAC name	6,7,8,14-tetradehydro-4,5a-epoxy- 3,6-dimethoxy-17-methylmorphinan
Other names	Paramorphine
Identifiers
CAS number	[115-37-7]
PubChem	5321926
KEGG	C06173
MeSH	Thebaine
ChEBI	9519
SMILES	CN1CCC23C4C(=CC=C2C1CC5 =C3C(=C(C=C5)OC)O4)OC
Properties
Molecular formula	C₁₉H₂₁NO₃
Molar mass	311.37 g mol^-1
Pharmacology
Metabolism	O-demethylation ^[1]
Legal status	Class A(UK) Schedule II(US)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Thebaine (paramorphine) is an opiate alkaloid. A minor constituent of opium, thebaine is chemically similar to both morphine and codeine, but has stimulatory rather than depressant effects, causing strychnine-like convulsions at higher doses.^[3] Thebaine is not used therapeutically, but can be converted industrially into a variety of compounds including oxycodone, oxymorphone, nalbuphine, naloxone, naltrexone, buprenorphine and etorphine.

It is controlled under international law, is listed as a Class A drug under the Misuse of Drugs Act 1971 in the United Kingdom and is controlled as a Schedule II of the Controlled Substances Act in America.

[edit] References

^ Mikus G, Somogyi AA, Bochner F, Eichelbaum M. "Thebaine O-demethylation to oripavine: genetic differences between two rat strains." Xenobiotica. 1991 Nov; 21(11):1501-9. PMID 1763524
^ WHO Advisory Group. "The dependence potential of thebaine." Bulletin on Narcotics. 1980; 32(1):45–54. Accessed October 5, 2007. PMID 6778542
^ Aceto MD, Harris LS, Abood ME, Rice KC. "Stereoselective mu- and delta-opioid receptor-related antinociception and binding with (+)-thebaine." European Journal of Pharmacology. 1999 Jan 22;365(2-3):143-7. PMID 9988096

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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 • 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 • Nalbuphine • 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 (Norpipanone) • 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