Acetyldihydrocodeine

Acetyldihydrocodeine
Clinical data
Other names	Acetyldihydrocodeine, Dihydrothebacone, 6-acetyl-7,8-dihydrocodeine
AHFS/Drugs.com	International Drug Names
ATC code	R05DA12 (WHO) ;
Legal status
Legal status	AU: S8 (Controlled); BR: Class A2 (Narcotic drugs); CA: Schedule I; DE: Anlage I (Authorized scientific use only); UK: Class B; US: Schedule I;
Identifiers
	IUPAC name 3-methoxy-6-acetoxy-(5α,6α)-4,5-epoxy-17-methylmorphinan;
CAS Number	3861-72-1 ;
PubChem CID	5463874;
DrugBank	DB01538 ;
ChemSpider	4576412 ;
UNII	SGY1T84P34;
CompTox Dashboard (EPA)	DTXSID30191930 ;
ECHA InfoCard	100.021.253
Chemical and physical data
Formula	C20H25NO4
Molar mass	343.423 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES O=C(O[C@@H]4[C@@H]5Oc1c2c(ccc1OC)C[C@H]3N(CC[C@]25[C@H]3CC4)C)C;
	InChI InChI=1S/C20H25NO4/c1-11(22)24-16-7-5-13-14-10-12-4-6-15(23-3)18-17(12)20(13,19(16)25-18)8-9-21(14)2/h4,6,13-14,16,19H,5,7-10H2,1-3H3/t13-,14+,16-,19-,20-/m0/s1 ; Key:LGGDXXJAGWBUSL-BKRJIHRRSA-N ;
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Acetyldihydrocodeine is an opiate derivative discovered in Germany in 1914^[2] and was used as a cough suppressant and analgesic. It is not commonly used, but has activity similar to other opiates. Acetyldihydrocodeine is a very close relative derivative of thebacon, where only the 6-7 bond is unsaturated. Acetyldihydrocodeine can be described as the 6-acetyl derivative of dihydrocodeine and is metabolised in the liver by demethylation and deacetylation to produce dihydromorphine.

Since acetyldihydrocodeine has higher lipophilicity than codeine and is converted into dihydromorphine rather than morphine, it can be expected to be more potent and longer-lasting. It also has a higher bioavailability than codeine. Side effects are similar to those of other opiates and include itching, nausea and respiratory depression.

Although an opioid of low to moderate strength and use in medicine elsewhere in the world, acetyldihydrocodeine is a Schedule I controlled substance in the United States. Its DEA Administrative Controlled Substances Control Number is 9051 and the one salt in use, acetyldihydrocodeine hydrochloride, has a freebase conversion ratio of 0.90.

References

^ Anvisa (2023-03-31). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-04-04). Archived from the original on 2023-08-03. Retrieved 2023-08-03.
^ von Braun J (1914). "Untersuchungen über Morphium-Alkaloide". Chemische Berichte. 47 (2): 2312–2330. doi:10.1002/cber.191404702149.

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[1] Anvisa (2023-03-31). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-04-04). Archived from the original on 2023-08-03. Retrieved 2023-08-03.

[2] von Braun J (1914). "Untersuchungen über Morphium-Alkaloide". Chemische Berichte. 47 (2): 2312–2330. doi:10.1002/cber.191404702149.

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