Cyclorphan

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Cyclorphan
File:Cyclorphan structure.svg
Identifiers
  • (−)-3-Hydroxy-N-cyclopropylmethylmorphinan
CAS Number
PubChem CID
ChemSpider
UNII
ChEMBL
E number{{#property:P628}}
CompTox Dashboard (EPA)
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Chemical and physical data
FormulaC20H27NO
Molar mass297.442 g·mol−1
3D model (JSmol)
Density1.19 g/cm3
Melting point188 °C (370 °F)
Boiling point458.4 °C (857.1 °F)
  • Oc1ccc4c(c1)[C@@]25[C@H]([C@H](N(CC2)CC3CC3)C4)CCCC5

Cyclorphan is an opioid analgesic of the morphinan family that was never marketed.[1] It acts as a μ-opioid receptor (MOR) weak partial agonist or antagonist, κ-opioid receptor (KOR) full agonist, and, to a much lesser extent, δ-opioid receptor (DOR) agonist (75-fold lower affinity relative to the KOR).[2][3] The drug was first synthesized in 1964 by scientists at Research Corporation.[4][5]: 232  In clinical trials, it had relatively long duration, good absorption, and provided strong pain relief but produced psychotomimetic effects via KOR activation, so its development was not continued.[1][5]: 232, 237 

See also

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References

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  4. ^ US Patent 3,285,922
  5. ^ a b Varghese V & Hudlicky T. A Short History of the Discovery and Development of Naltrexone and Other Morphine Derivatives. Chapter 6 in Natural Products in Medicinal Chemistry, Volume 60 of Methods and Principles in Medicinal Chemistry. Ed. Stephen Hanessian. John Wiley & Sons, 2013. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).