Codeinone: Difference between revisions

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[[File:Codeinone.png|thumb|{{PAGENAME}}]]<br>'''Codeinone''' is an [[organic compound]] and a specific type of [[opiate]] that is primarily used in the production of [[codeine]] and [[hydrocodone]]. It is a secondary metabolite of the [[opium poppy]] (''Papaver somniferum'') and is chemically classified as a phenanthrene alkaloid.
{{Infobox drug
| name = Codeinone
| image = [[File:Codeinone.svg|thumb|Chemical structure of Codeinone]]
| width = 200px
| alt =
| caption = Chemical structure of Codeinone
| IUPAC_name = 7,8-didehydro-4,5α-epoxy-3-methoxy-17-methylmorphinan-6-one
| CAS_number = 467-15-2
| ATC_prefix =
| ATC_suffix =
| PubChem = 5462328
| DrugBank =
| ChemSpiderID = 4576620
| UNII =
| KEGG =
| ChEBI = 16714
| ChEMBL = 2104340
}}
 
'''Codeinone''' is a naturally occurring opiate alkaloid and a derivative of [[codeine]]. It is classified as a [[morphinan]] and is structurally related to [[morphine]] and [[thebaine]]. Codeinone is an intermediate in the biosynthesis of codeine and morphine in the opium poppy, ''Papaver somniferum''.


==Chemical Structure and Properties==
==Chemical Structure and Properties==
 
Codeinone has the chemical formula C18H19NO3 and a molecular weight of 297.35 g/mol. It is characterized by the presence of a 6-keto group, distinguishing it from codeine, which has a 6-hydroxy group. The presence of the 6-keto group makes codeinone more reactive and a key intermediate in the conversion of codeine to morphine.
Codeinone is a member of the class of compounds known as [[morphinans]], which are polycyclic compounds with a skeleton based on the morphinan system. It has a molecular formula of C18H21NO3 and a molecular weight of 297.365 g/mol. The compound is characterized by a double bond between the carbon atoms at positions 7 and 8 and a ketone group at position 6.


==Biosynthesis==
==Biosynthesis==
In the opium poppy, codeinone is synthesized from thebaine through a series of enzymatic reactions. The conversion involves the action of the enzyme thebaine 6-O-demethylase, which demethylates thebaine to produce codeinone. Subsequently, codeinone is reduced to codeine by the enzyme codeinone reductase.


The biosynthesis of codeinone involves several enzymatic steps. The process begins with the conversion of [[thebaine]], another opiate alkaloid, into codeinone. This reaction is catalyzed by the enzyme [[thebaine 6-O-demethylase]] (T6ODM) and involves the removal of a methyl group from thebaine. The resulting compound, codeinone, can then be reduced to codeine by the enzyme [[codeine O-demethylase]] (CODM).
==Pharmacology==
Codeinone itself is not used therapeutically, but it is an important intermediate in the synthesis of other opiates. Its pharmacological properties are similar to those of other morphinans, but it is primarily of interest for its role in the biosynthetic pathway of more clinically relevant opiates.


==Uses==
==Synthesis and Derivatives==
In addition to its natural occurrence, codeinone can be synthesized in the laboratory from codeine or thebaine. It serves as a precursor for the synthesis of various semi-synthetic opiates, including [[oxycodone]] and [[hydrocodone]].


Codeinone is primarily used as a precursor in the production of codeine and hydrocodone, two commonly used [[pain reliever]]s. Codeine is also used as a cough suppressant and is often combined with other medications in cough and cold remedies. Hydrocodone, on the other hand, is a semi-synthetic opioid that is used to treat moderate to severe pain.
==Research and Applications==
Research into codeinone focuses on its role in the biosynthesis of opiates and its potential use in the development of new analgesics. Understanding the enzymatic pathways that convert codeinone to other opiates can aid in the development of novel pain management therapies.


==Safety and Regulation==
==Also see==
 
* [[Codeine]]
Due to its use in the production of opioids, codeinone is regulated under the [[Controlled Substances Act]] in the United States and similar legislation in other countries. It is classified as a Schedule II controlled substance, meaning it has a high potential for abuse and can lead to severe psychological or physical dependence.
 
==See Also==
* [[Morphine]]
* [[Morphine]]
* [[Opioid]]
* [[Thebaine]]
* [[Thebaine]]
* [[Opiate]]
* [[Papaver somniferum]]
{{Opioids}}
{{Opiates}}


[[Category:Organic compounds]]
[[Category:Opiates]]
[[Category:Opiates]]
[[Category:Phenanthrenes]]
[[Category:Alkaloids]]
{{Organic-compound-stub}}
[[Category:Morphinans]]
{{Opiate-stub}}

Latest revision as of 00:50, 10 December 2024

Codeinone
[[File:
Chemical structure of Codeinone
|frameless|220px|alt=|Chemical structure of Codeinone]]
INN
Drug class
Routes of administration
Pregnancy category
Bioavailability
Metabolism
Elimination half-life
Excretion
Legal status
CAS Number 467-15-2
PubChem 5462328
DrugBank
ChemSpider 4576620
KEGG


Codeinone is a naturally occurring opiate alkaloid and a derivative of codeine. It is classified as a morphinan and is structurally related to morphine and thebaine. Codeinone is an intermediate in the biosynthesis of codeine and morphine in the opium poppy, Papaver somniferum.

Chemical Structure and Properties[edit]

Codeinone has the chemical formula C18H19NO3 and a molecular weight of 297.35 g/mol. It is characterized by the presence of a 6-keto group, distinguishing it from codeine, which has a 6-hydroxy group. The presence of the 6-keto group makes codeinone more reactive and a key intermediate in the conversion of codeine to morphine.

Biosynthesis[edit]

In the opium poppy, codeinone is synthesized from thebaine through a series of enzymatic reactions. The conversion involves the action of the enzyme thebaine 6-O-demethylase, which demethylates thebaine to produce codeinone. Subsequently, codeinone is reduced to codeine by the enzyme codeinone reductase.

Pharmacology[edit]

Codeinone itself is not used therapeutically, but it is an important intermediate in the synthesis of other opiates. Its pharmacological properties are similar to those of other morphinans, but it is primarily of interest for its role in the biosynthetic pathway of more clinically relevant opiates.

Synthesis and Derivatives[edit]

In addition to its natural occurrence, codeinone can be synthesized in the laboratory from codeine or thebaine. It serves as a precursor for the synthesis of various semi-synthetic opiates, including oxycodone and hydrocodone.

Research and Applications[edit]

Research into codeinone focuses on its role in the biosynthesis of opiates and its potential use in the development of new analgesics. Understanding the enzymatic pathways that convert codeinone to other opiates can aid in the development of novel pain management therapies.

Also see[edit]