acetyldihydrocodeine

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/10/25 23:40:22」(JST)

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Acetyldihydrocodeine

Systematic (IUPAC) name
3-methoxy-6-acetoxy-(5α,6α)-7,8-Didehydro-4,5-epoxy-17-methylmorphinan
Clinical data
AHFS/Drugs.com	International Drug Names
Legal status	DE: Anlage I US: Schedule I
Identifiers
CAS Registry Number	3861-72-1 N
ATC code	R05DA12
PubChem	CID: 5463874
DrugBank	DB01538 Y
ChemSpider	4576412 Y
UNII	SGY1T84P34 Y
Synonyms	Acetyldihydrocodeine, Dihydrothebacone, 6-acetyl-7,8-dihydrocodeine
Chemical data
Formula	C20H25NO4
Molecular mass	343.417 g/mol
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 N Key:LGGDXXJAGWBUSL-BKRJIHRRSA-N N
N (what is this?)  (verify)

Acetyldihydrocodeine is an opiate derivative discovered in Germany in 1914 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 double 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, and also have 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

English Journal

• Pivaloylcodeine, a new codeine derivative, for the inhibition of morphine glucuronidation. An in vitro study in the rat.

• Antonilli L1, Togna AR, Sabatini G, Venditti A, Guarcini L, Togna GI, Nicoletti R, Sanasi F, Bianco A, Nencini P.Author information 1Department of Physiology and Pharmacology 'Vittorio Erspamer', Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy.AbstractWe have previously found that phenanthrenic opioids, including codeine, modulate morphine glucuronidation in the rat. Here codeine and five of its derivatives were compared in their effects on the synthesis of morphine-3-glucuronide (M3G) and morphine-6-glucuronide (M6G) from morphine by rat liver microsomal preparations, and by primary cultures of rat hepatocytes previously incubated for 72 h with either codeine or its derivatives. Acetylcodeine and pivaloylcodeine shared the capability of the parent compound of inhibiting the synthesis of M3G by liver microsomes through a noncompetitive mechanism of action. Their IC50 were 3.25, 2.27, and 4.32 μM, respectively. Dihydrocodeine, acetyldihydrocodeine, and lauroylcodeine were ineffective. In all the experimental circumstances M6G was undetectable in the incubation medium. In primary hepatocyte cultures codeine only inhibited M3G formation, but with a lower efficacy than that observed with microsomes (IC50 20.91 vs 4.32 μM). Preliminary results show that at micromolar concentrations codeine derivatives exhibit a low rate of affinity for μ opiate receptors. In conclusion, acetyl and pivaloyl derivatives of codeine noncompetitively inhibit liver glucuronidation of morphine interacting with microsomes. This study further strengths the notion that phenanthrenic opioids can modulate morphine glucuronidation independently from their effects on μ opiate receptors.
• Bioorganic & medicinal chemistry.Bioorg Med Chem.2013 Dec 15;21(24):7955-63. doi: 10.1016/j.bmc.2013.09.062. Epub 2013 Oct 19.
• We have previously found that phenanthrenic opioids, including codeine, modulate morphine glucuronidation in the rat. Here codeine and five of its derivatives were compared in their effects on the synthesis of morphine-3-glucuronide (M3G) and morphine-6-glucuronide (M6G) from morphine by rat liver m
• PMID 24183585

• Analgesic narcotic antagonists. 1. 8 beta-Alkyl-, 8 beta-acyl-, and 8 beta-(tertiary alcohol)dihydrocodeinones and -dihydromorphinones.

• Kotick MP, Leland DL, Polazzi JO, Schut RN.AbstractConjugate addition of lithium dialkyl cuprates to codeinone (3) gave as the major product a series of 8 beta-alkyldihydrocodeinones 4a-m. A low yield of the 8 alpha-isomer 6 was isolated in several cases. 8 beta-Acyldihydrocodeinones 10 were prepared by the addition of acyl carbanion equivalents (protected cyanohydrin method or lithium bis(alpha-ethoxyvinyl)cuprate) to 3 followed by hydrolysis. 8 beta-Acetyldihydrocodeine (12) was reacted with MeLi or n-BuLi to give tertiary alcohols 13, which were oxidized to target dihydrocodeinones 14. The 8 beta-substituted compounds with unsaturated (4c,f,m), branched (4d,g,i-k), or large straight-chain (4h,l) alkyl groups, as well as the acyl (10a-d) and tertiary alcohol (14a,b) derivatives, were less active than dihydrocodeinone (4n) in the mouse writhing and rat tail-flick analgesic assays. The analgesically active 8 beta-methyl (4a) and 8 beta-ethyl (4b) compounds were converted to N-(cyclopropylmethyl)- and N-(cyclobutylmethyl)dihydronorcodeinones (17 and 18) and -dihydronormorphinones (19 and 20). Some of these compounds had mixed agonist-antagonist profiles of action. One of these compounds, N-(cyclopropylmethyl)-8 beta-ethyldihydronorcodeinone (17b), has been selected for further study in man.
• Journal of medicinal chemistry.J Med Chem.1980 Feb;23(2):166-74.
• Conjugate addition of lithium dialkyl cuprates to codeinone (3) gave as the major product a series of 8 beta-alkyldihydrocodeinones 4a-m. A low yield of the 8 alpha-isomer 6 was isolated in several cases. 8 beta-Acyldihydrocodeinones 10 were prepared by the addition of acyl carbanion equivalents (pr
• PMID 6153723

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• acetyldihydrocodeine - Wiktionary

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