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Cyclopentamine

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Cyclopentamine

Cyclopentamine
Systematic (IUPAC) name
(RS)-1-cyclopentyl-N-methyl-propan-2-amine
Clinical data
Legal status
  • Uncontrolled
Routes of
administration
Inhalation
Identifiers
CAS Registry Number  YesY
ATC code R01
PubChem CID:
DrugBank  N
ChemSpider  YesY
UNII  YesY
KEGG  YesY
ChEMBL  YesY
Synonyms N,α-dimethyl-cyclopenaneethylamine
Chemical data
Formula C9H19N
Molecular mass 141.254
Physical data
Boiling point 171 °C (340 °F)
 N   

Cyclopentamine (Clopane, Cyclonarol, Cyclosal, Cyklosan, Nazett, Sinos) is a sympathomimetic alkylamine, classified as a vasoconstrictor. Cyclopentamine was indicated in the past as an over-the-counter (OTC) medication for use as a nasal decongestant, notably in Europe and Australia, but has now been largely discontinued possibly due to the availability, effectiveness, and safety of a structurally similar drug, propylhexedrine.

Pharmacology

Cyclopentamine acts as a releasing agent of the catecholamine neurotransmitters norepinephrine (noradrenaline), epinephrine (adrenaline), and dopamine.[1] Its effects on norepinephrine and epinephrine mediate its decongestant effects, while its effects on all three neurotransmitters are responsible for its stimulant properties. When ingested orally in sufficient quantities, cyclopentamine produces similar effects to amphetamine, methamphetamine, and propylhexedrine.[2][3]

Chemistry

Cyclopentamine is the cyclopentane homolog of propylhexedrine, differing only in terms of the contracted ring size of a cyclopentane, containing one -CH2- unit less than the cyclohexyl group.

In terms of the acyclic part of the molecule, both cyclopentamine and propylhexedrine are the same as methamphetamine, all three molecules containing the 2-methylaminopropyl side-chain. The difference between them is that whereas methamphetamine is an aromatic molecule containing a phenyl group, cyclopentamine and propylhexedrine are entirely aliphatic and contain no delocalized electrons at all. The effect that this has on potency is that the reduced alicyclic-alkylamines are weaker than unsaturated (meth)amphetamine.

See also

References

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