R-4066

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R-4066
File:R-4066.png
Systematic (IUPAC) name
6-(3,4-dihydro-1'H,2H-spiro[naphthalene-1,4'-piperidin]-1'-yl)-4,4-diphenylhexan-3-one
Identifiers
CAS Number 101564-56-1
PubChem CID 380029
Synonyms N-(3,3-diphenyl-4-oxohex-1-yl)-7,8-benzo-3-azaspiro[5.5]undecane
Chemical data
Formula C32H37NO
Molar mass 451.641[[Script error: No such module "String".]]
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R-4066 is a drug which is an analogue of the opioid analgesic methadone, where the metabolically labile dimethylamino group has been replaced by a piperidinospiro group. It is around 212x more potent than methadone as an analgesic in animal tests, with an effective oral dosage of 0.07mg/kg, but is slightly shorter acting, with a duration of action of around 3 hours.[1]

R-4066 has never been used in humans, but would be expected to produce effects similar to those of other potent opioid agonists, including strong analgesia, sedation, euphoria, constipation, itching and respiratory depression which could be harmful or fatal.


References

  1. ↑ Frincke JM, Henderson GL, Janssen PAJ, Van der Eycken CAM. Synthesis and analgesic activity of some long-acting piperidinospiro derivatives of methadone. Journal of Medicinal Chemistry. 1978 May;21(5):474-6. PMID 660594
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