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Naloxazone

Naloxazone
Names
IUPAC name
(5α)-17-Allyl-3,14-dihydroxy-4,5-epoxymorphinan-6-one hydrazone
Other names
Naloxone- 6-hydrazone
Identifiers
 YesY
ChEMBL  YesY
Jmol-3D images Image
PubChem
Properties
C19H23N3O3
Molar mass 341.40422 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
 YesY  (: YesY/N?)

Naloxazone is an irreversible μ-opioid receptor antagonist which is selective for the μ1 receptor subtype.[1] Naloxazone produces very long lasting antagonist effects as it forms a covalent bond to the active site of the mu-opioid receptor,[2] thus making it impossible for the molecule to unbind and blocking the receptor permanently until the receptor is recycled by endocytosis.

It has been reported that naloxazone is unstable in acidic solution, dimerizing into the more stable and much more potent antagonist naloxonazine.[3] Under conditions in which no naloxonazine formation could be detected, naloxazone did not display irreversible μ opioid receptor binding.[3]

See also

References

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  3. ^ a b


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