Cyclopentamine: Information from Answers.com

1 : 1 mixture (racemate)
Cyclopentamine
Systematic (IUPAC) name

(RS)-1-cyclopentyl-N-methyl-propan-2-amine
Identifiers
CAS number	102-45-4
ATC code	R01AA02
PubChem	7608
Chemical data
Formula	C₉H₁₉N
Mol. mass	141.254
Synonyms	N,α-dimethyl-cyclopenaneethylamine
Physical data
Boiling point	171 °C (340 °F)
Pharmacokinetic data
Bioavailability	?
Metabolism	?
Half life	?
Excretion	?
Therapeutic considerations
Pregnancy cat.	?
Legal status	Uncontrolled
Routes	Inhalation

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.^{[citation needed]}

1 Chemistry
2 Synthesis
3 Pharmacology
4 See also
5 References

Chemistry

Cyclopentamine is the cyclopentane homologue 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 directly synonymous with methamphetamine, all three molecules containing the 2-methylaminopropyl side-chain. The obvious 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.

Synthesis

Cyclopentamine can be synthesised starting from cyclopentanone and cyanoacetic acid.^[1]^[2]

Pharmacology

Cyclopentamine acts as a releasing agent of the catecholamine neurotransmitters norepinephrine (noradrenaline), epinephrine (adrenaline), and dopamine, or as a norepinephrine-dopamine releasing agent (NDRA).^[3] 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.^[4]^[5]

References

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^ Schmidt JL, Fleming WW (July 1964). "A Nonsympathomimetic Effect of Cyclopentamine and Beta-Mercaptoethylamine in the Rabbit Ileum.". The Journal of Pharmacology and Experimental Therapeutics 145: 83–6. PMID 14209515. http://www.drugs-forum.com/forum/local_links.php?action=jump&catid=70&id=4116.
^ Ghouri MS, Haley TJ (July 1969). "In vitro evaluation of a series of sympathomimetic amines and the beta-adrenergic blocking properties of cyclopentamine.". Journal of Pharmaceutical Sciences 58 (7): 882–4. PMID 4390216.
^ Marley E, Stephenson JD (August 1971). "Actions of dexamphetamine and amphetamine-like amines in chickens with brain transections.". British Journal of Pharmacology 42 (4): 522–42. PMID 5116035. PMC 1665761. http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1665761&blobtype=pdf.

v • d • e Stimulants

Adamantanes	Adaphenoxate • Adapromine • Amantadine • Bromantane • Chlodantane • Gludantane • Memantine • Midantane

Arylcyclohexylamines	Benocyclidine • Dieticyclidine • Esketamine • Eticyclidine • Gacyclidine • Ketamine • Phencyclamine • Phencyclidine • Rolicyclidine • Tenocyclidine • Tiletamine •

Benzazepines	6-Br-APB • SKF-81297 • SKF-82958

Cholinergics	A-84543 • A-366,833 • ABT-202 • ABT-418 • AR-R17779 • Altinicline • Anabasine • Arecoline • Cotinine • Cytisine • Dianicline • Epibatidine • Epiboxidine • GTS-21 • Ispronicline • Nicotine • PHA-543,613 • PNU-120,596 • PNU-282,987 • Pozanicline • Rivanicline • Sazetidine A • SIB-1553A • SSR-180,711 • TC-1698 • TC-1827 • TC-2216 • TC-5619 • Tebanicline • UB-165 • Varenicline

Convulsants	Anatoxin-a • Bicuculline • DMCM • Flurothyl • Gabazine • Pentetrazol • Picrotoxin • Strychnine • Thujone

Eugeroics	Adrafinil • Armodafinil • Modafinil

Oxazolines	4-Methylaminorex • Aminorex • Clominorex • Cyclazodone • Fenozolone • Fluminorex • Pemoline • Thozalinone

Phenethylamines	2-Fluoroamphetamine • 2-OH-PEA • 2-Phenyl-3-aminobutane • 2-Phenyl-3-methylaminobutane • 2,3-MDA • 3-Fluoroamphetamine • 3-Methoxyamphetamine • 3-Methylamphetamine • 4-BMC • 4-Ethylamphetamine • 4-FA • 4-FMA • 4-MA • 4-MMA • 4-MTA • Alfetamine • α-Ethylphenethylamine • Amfepentorex • Amidephrine • Amphechloral • Amphetamine (Dextroamphetamine, Levoamphetamine) • Amphetaminil • Arbutamine • Atomoxetine (Tomoxetine) • β-Methylphenethylamine • Benfluorex • Benzphetamine • BDB (J) • BOH (Hydroxy-J) • BPAP • Buphedrone • Bupropion (Amfebutamone) • Butylone • Cathine • Cathinone • Chlorphentermine • Clenbuterol • Clobenzorex • Clortermine • Denopamine • Diethylcathinone (Diethylpropion, Amfepramone) • Dimethoxyamphetamine • Dimethylamphetamine • Dimethylcathinone (Dimethylpropion, Metamfepramone) • Dobutamine • DOPA (Dextrodopa, Levodopa) • Dopamine • Dopexamine • Droxidopa • EBDB (Ethyl-J) • Ephedrine • Epinephrine (Adrenaline) • Epinine (Deoxyepinephrine) • Etafedrine • Ethcathinone (Ethylpropion) • Ethylamphetamine (Etilamfetamine) • Ethylone • Etilefrine • Fenbutrazate • Fencamine • Fencamfamine • Fenethylline • Fenfluramine (Dexfenfluramine) • Fenproporex • Flephedrone • Fludorex • Furfenorex • Gepefrine • HMMA • Hordenine • Ibopamine • Indanorex • IMP • Indanylamphetamine • Isoetarine • Isoprenaline (Isoproterenol) • Lefetamine • Lisdexamfetamine • Lophophine (Homomyristicylamine) • Manifaxine • MBDB (Methyl-J; "Eden") • MDA (Tenamfetamine) • MDBU • MDEA ("Eve") • MDMA ("Ecstasy", "Adam") • MDMPEA (Homarylamine) • MDOH • MDPR • MDPEA (Homopiperonylamine) • Medifoxamine • Mefenorex • Mephedrone • Mephentermine • Metanephrine • Metaraminol • Methamphetamine (Desoxyephedrine, Methedrine; Dextromethamphetamine, Levomethamphetamine) • Methoxamine • Methoxyphenamine • MMA • Methcathinone (Methylpropion) • Methedrone • Methoxyphenamine • Methylone • MMDA • MMDMA • MMMA • Naphthylamphetamine • Nisoxetine • Norepinephrine (Noradrenaline) • Norfenefrine • Norfenfluramine • Normetanephrine • Octopamine • Orciprenaline • Ortetamine • Oxaflozane • Oxilofrine • Paredrine (Norpholedrine, Oxamphetamine, Mycadrine) • PBA • PCA • PHA • Pargyline • Phendimetrazine • Phenmetrazine • Phenpentermine • Phenpromethamine • Phentermine • Phenylalanine • Phenylephrine (Neosynephrine) • Phenylpropanolamine • Pholedrine • PIA • PMA • PMEA • PMMA • PPAP • Propylamphetamine • Pseudoephedrine • Radafaxine • Ropinirole • Salbutamol (Albuterol; Levosalbutamol) Selegiline (Deprenyl) • Sibutramine • Synephrine (Oxedrine) • Theodrenaline • Tiflorex (Flutiorex) • Tranylcypromine • Tyramine • Tyrosine • Xamoterol • Xylopropamine • Zylofuramine

Piperazines	2C-B-BZP • BZP • DBL-583 • GBR-12783 • GBR-12935 • GBR-13069 • GBR-13098 • GBR-13119 • MeOPP • MBZP • Vanoxerine

Piperidines	2-Benzylpiperidine • 4-Benzylpiperidine • Desoxypipradrol • Diphemethoxidine • Ethylphenidate • Methylnaphthidate • Methylphenidate (Dexmethylphenidate) • Nocaine • Phacetoperane • Pipradrol • SCH-5472

Pyrrolidines	α-PPP • α-PBP • α-PVP • MDPPP • MDPBP • MDPV • MPBP • MPHP • MPPP • MOPPP • Naphyrone • Prolintane • Pyrovalerone

Tropanes	3α-Bis-(4-fluorophenyl)methoxytropane • 3-CPMT • 3-Pseudotropyl-4-fluorobenzoate • Altropane (IACFT) • Brasofensine • CFT (WIN 35,428) • β-CIT (RTI-55) • Cocaethylene • Cocaine • β-CPPIT • Dichloropane (RTI-111) • Difluoropine • FE-β-CPPIT • FP-β-CPPIT • Ioflupane (¹²³I) • Norcocaine • PIT • PTT • RTI-31 • RTI-32 • RTI-51 • RTI-112 • RTI-113 • RTI-121 (IPCIT) • RTI-126 • RTI-150 • RTI-171 • RTI-177 • RTI-336 • RTI-371 • RTI-386 • Tesofensine • Troparil (β-CPT, WIN 35,065-2) • Tropoxane • WF-23 • WF-33 • WF-60

Xanthines	Aminophylline • Caffeine • Dimethazan • Paraxanthine • Theobromine • Theophylline

Others	1-(Thiophen-2-yl)-2-aminopropane • 2-Aminoindane • 2-Aminotetralin • 2-Diphenylmethylpyrrolidine • 5-(2-Aminopropyl)indole • AL-1095 • Amfonelic acid • Amineptine • Amiphenazole • Atipamezole • Bemegride • Benzydamine • BTQ • BTS 74,398 • Carphedon • Clofenciclan • Cropropamide • Crotetamide • Diclofensine • Dimethocaine • Diphenylprolinol • Efaroxan • Etamivan • Feprosidnine • Gamfexine • Gilutensin • GYKI-52895 • Hexacyclonate • Idazoxan • Indatraline • JNJ-7925476 • ‎ JZ-IV-10 • Lazabemide • Leptacline • LR-5182 • Mazindol • Meclofexonate • Mefexamide • Mesocarb • Nefopam • Nikethamide • Nomifensine • O-2172 • Oxaprotiline • Phthalimidopropiophenone • Propylhexedrine • PRC200-SS • Rasagiline • Rauwolscine • Tametraline • Tandamine • U-23807A • UH-232 • Yohimbine •

See also Sympathomimetic amines

Decongestants and other nasal preparations (R01)

Topical

Sympathomimetics, plain	Cyclopentamine • Ephedrine • Phenylephrine • Oxymetazoline • Tetryzoline • Xylometazoline • Naphazoline • Tramazoline • Metizoline • Tuaminoheptane • Fenoxazoline • Tymazoline • Epinephrine

Antiallergic agents, excluding corticosteroids	Spaglumic acid histamine antagonists (Levocabastine, Antazoline, Thonzylamine) mast cell stabilizer (some are also antihistamines) (Cromoglicic acid, Nedocromil, Azelastine, Olopatadine)

Corticosteroids	Beclometasone • Prednisolone • Dexamethasone • Flunisolide • Budesonide • Betamethasone • Tixocortol • Fluticasone • Mometasone furoate • Triamcinolone • Ciclesonide

Other nasal preparations	Calcium hexamine thiocyanate • Retinol • Ipratropium bromide • Ritiometan • Mupirocin • Hexamidine • Framycetin • Hyaluronic acid • Eucalyptus oil

Systemic use:
Sympathomimetics

Phenylpropanolamine • Pseudoephedrine • Phenylephrine • Phenylpropylamine

Adrenergics

Receptor
Ligands

α₁	Agonists: Amidephrine • Cirazoline • Dopamine • Epinephrine (Adrenaline) • Etilefrine • Isoprenaline • Levonordefrin • Metaraminol • Methoxamine • Methyldopa • Norepinephrine (Noradrenaline) • Oxymetazoline • Phenylephrine Antagonists: Alfuzosin • Arotinolol • Carvedilol • Doxazosin • Indoramin • L-765,314 • Labetalol • Moxisylyte • Nantenine • Phentolamine • Phenoxybenzamine • Prazosin • Silodosin • Tamsulosin • Terazosin • Tolazoline • Trimazosin • Urapidil

α₂	Agonists: (R)-3-Nitrobiphenyline • 4-NEMD • Amitraz • Apraclonidine • Brimonidine • Clonidine • Detomidine • Dexmedetomidine • Dopamine • Epinephrine (Adrenaline) • Etilefrine • Guanabenz • Guanfacine • Guanethidine • Guanoxabenz • Levonordefrin • Lofexidine • Medetomidine • Methyldopa • Norepinephrine (Noradrenaline) • Octopamine • Romifidine • Tizanidine • Tolonidine • Xylazine • Xylometazoline Antagonists: 1-PP • Atipamezole • BRL-44408 • Buspirone • Cirazoline • Efaroxan • Gepirone • Idazoxan • Ipsapirone • Mianserin • Mirtazapine • NAN-190 • Phentolamine • Phenoxybenzamine • Rauwolscine • SB-269,970 • Setiptiline • Spiroxatrine • Tandospirone • Tolazoline • Yohimbine

α_?	Agonists: Anisodamine • Ephedrine • Ergotamine • Indanidine • Mephentermine • Midodrine • Mivazerol • Naphazoline • Phenylpropanolamine • Pseudoephedrine • Rilmenidine • Synephrine • Talipexole • Tetrahydrozoline

β₁	Agonists: Denopamine • Dobutamine • Dopamine • Epinephrine (Adrenaline) • Etilefrine • Levonordefrin • Methyldopa • Norepinephrine (Noradrenaline) Antagonists: Acebutolol • Alprenolol • Amosulalol • Arotinolol • Atenolol • Bupranolol • Carvedilol • Celiprolol • Betaxolol • Bisoprolol • Dichloroisoprenaline • Esmolol • Labetalol • Metipranolol • Metoprolol • Nadolol • Nebivolol • Oxprenolol • Penbutolol • Pindolol • Practolol • Pronethalol • Propranolol • Sotalol • Tertatolol • Timolol • Tilisolol • Xamoterol

β₂	Agonists: Arformoterol • Bambuterol • Bitolterol • Carbuterol • Clenbuterol • Dopamine • Dopexamine • Epinephrine (Adrenaline) • Etilefrine • Fenoterol • Formoterol • Hexoprenaline • Indacaterol • Levonordefrin • Levosalbutamol • Methyldopa • Norepinephrine (Noradrenaline) • Orciprenaline • Pirbuterol • Procaterol • Reproterol • Rimiterol • Ritodrine • Salbutamol (Albuterol) • Salmeterol • Terbutaline • Tulobuterol Antagonists: Alprenolol • Amosulalol • Arotinolol • Bupranolol • Butaxamine • Carvedilol • Dichloroisoprenaline • ICI 118551 • Labetalol • Metipranolol • Nadolol • Oxprenolol • Penbutolol • Pindolol • Pronethalol • Propranolol • Sotalol • Tertatolol • Timolol • Tilisolol

β₃	Agonists: Amibegron • Arotinolol • Dopamine • Epinephrine (Adrenaline) • Etilefrine • Labetalol • Levonordefrin • Methyldopa • Norepinephrine (Noradrenaline) • Solabegron Antagonists: Carvedilol • SR 59230A

β_?	Agonists: Arbutamine • BAAM • Befunolol • Broxaterol • Buphenine • Cimaterol • Ephedrine • Higenamine • Isoetarine • Isoxsuprine • Mabuterol • Methoxyphenamine • Oxyfedrine • Prenalterol • Pseudoephedrine • Ractopamine • Tretoquinol • Zilpaterol • Zinterol

Reuptake
Inhibitors

Plasmalemmal

NET Inhibitors	Norepinephrine Reuptake Inhibitors: Atomoxetine (Tomoxetine) • Ciclazindol • Mazindol • Nisoxetine • Reboxetine • Tandamine • Tapentadol • Viloxazine; Norepinephrine-Dopamine Reuptake Inhibitors: Amineptine • Bupropion (Amfebutamone) • Fencamine • Fencamfamine • Lefetamine • LR-5182 • Manifaxine • Methylphenidate • Nomifensine • O-2172 • Radafaxine; Serotonin-Norepinephrine Reuptake Inhibitors: Bicifadine • Desvenlafaxine • Duloxetine • Milnacipran • Sibutramine • Tramadol • Venlafaxine; Serotonin-Norepinephrine-Dopamine Reuptake Inhibitors: Brasofensine • Diclofensine • DOV-102,677 • DOV-21,947 • DOV-216,303 • JNJ-7925476 • JZ-IV-10 • Methylnaphthidate • Naphyrone • NS-2359 • PRC200-SS • SEP-225,289 • SEP-227,162 • Tesofensine; Tricyclic Antidepressants: Amitriptyline • Butriptyline • Cianopramine • Clomipramine • Desipramine • Dosulepin • Doxepin • Imipramine • Lofepramine • Nortriptyline • Protriptyline • Trimipramine; Tetracyclic Antidepressants: Amoxapine • Maprotiline • Mianserin • Oxaprotiline; Others: Cocaine • Nefazodone • Nefopam • Ziprasidone

TRPC6 Activators	Adhyperforin • Hyperforin

Vesicular

VMAT Inhibitors

Ibogaine • Reserpine • Tetrabenazine

Releasing
Agents

Oxazolines: 4-Methylaminorex (4-MAR, 4-MAX) • Aminorex • Clominorex • Cyclazodone • Fenozolone • Fluminorex • Pemoline • Thozalinone; Phenethylamines (also Amphetamines, Cathinones, Phentermines, etc): 2-Hydroxyphenethylamine (2-OH-PEA) • 4-Methylamphetamine (4-MA) • 4-Methylmethamphetamine (4-MMA) • Alfetamine • Amphetamine (Dextroamphetamine, Levoamphetamine) • Amphetaminil • Amfepentorex • β-Methylphenethylamine (β-Me-PEA) • Benzodioxolylbutanamine (BDB) • Benzodioxolylhydroxybutanamine (BOH) • Benzphetamine • Buphedrone • Butylone • Cathine • Cathinone • Clobenzorex • Clortermine • Diethylcathinone (Diethylpropion, Amfepramone) • Dimethoxyamphetamine (DMA) • Dimethoxymethamphetamine (DMMA) • Dimethylamphetamine • Dimethylcathinone (Dimethylpropion, Metamfepramone) • Ephedrine (EPH) • Ethcathinone (Ethylpropion) • Ethylamphetamine • Ethylbenzodioxolylbutanamine (EBDB) • Ethylone • Fenethylline • Fenproporex • Flephedrone • Fludorex • Furfenorex • Hordenine • Indanorex • Indanylamphetamine (IAP) • Lisdexamfetamine • Lophophine (Homomyristicylamine) • Mefenorex • Mephedrone • Mephentermine • Methamphetamine (Desoxyephedrine, Methedrine; Dextromethamphetamine, Levomethamphetamine) • Methcathinone (Methylpropion) • Methedrone • Methoxymethylenedioxyamphetamine (MMDA) • Methoxymethylenedioxymethamphetamine (MMDMA) • Methylbenzodioxolylbutanamine (MBDB) • Methylenedioxyamphetamine (MDA; Tenamfetamine) • Methylenedioxyethylamphetamine (MDEA) • Methylenedioxyhydroxyamphetamine (MDOH) • Methylenedioxymethamphetamine (MDMA) • Methylenedioxymethylphenethylamine (MDMPEA; Homarylamine) • Methylenedioxyphenethylamine (MDPEA; Homopiperonylamine) • Methylone • Naphthylamphetamine (NAP) • Ortetamine • Oxaflozane • Parabromoamphetamine (PBA) • Parachloroamphetamine (PCA) • Parafluoroamphetamine (PFA) • Parafluoromethamphetamine (PFMA) • Parahydroxyamphetamine (PHA) • Paraiodoamphetamine (PIA) • Paramethoxyamphetamine (PMA) • Paramethoxyethylamphetamine (PMEA) • Paramethoxymethamphetamine (PMMA) • Paredrine (Norpholedrine, Oxamphetamine) • Phendimetrazine • Phenethylamine (PEA) • Phenmetrazine • Pholedrine • Phenpentermine • Phenpromethamine • Phentermine • Phenylpropanolamine (PPA) • Propylamphetamine • Pseudoephedrine (PSE) • Tiflorex (Flutiorex) • Tyramine (TRA) • Xylopropamine • Zylofuramine; Piperazines: 2,5-Dimethoxy-4-bromobenzylpiperazine (2C-B-BZP) • Benzylpiperazine (BZP) • Methoxyphenylpiperazine (MeOPP; Paraperazine) • Methylbenzylpiperazine (MBZP) • Methylenedioxybenzylpiperazine (MDBZP; Piperonylpiperazine) • Parafluorophenylpiperazine (pFPP; Fluoperazine); Others: 2-Aminoindane (2-AI) • 2-Aminotetralin (2-AT) • 2-Benzylpiperidine (2-BP) • 4-Benzylpiperidine (4-BP) • Clofenciclan • Cyclopentamine • Cypenamine • Cyprodenate • Feprosidnine • Gilutensin • Heptaminol • Hexacyclonate • Isometheptene • Methylhexanamine • Octodrine • Phthalimidopropiophenone • Propylhexedrine (PHX) • Tuaminoheptane (Tuamine)

Enzyme
Inhibitors

Anabolism

PAH Inhibitors	3,4-Dihydroxystyrene

TH Inhibitors	3-Iodotyrosine • Aquayamycin • Bulbocapnine • Metirosine • Oudenone

AAAD Inhibitors	Benserazide • Carbidopa

DBH Inhibitors	Disulfiram • Nepicastat • Tropolone

PNMT Inhibitors	CGS-19281A • SKF-64139 • SKF-7698

Catabolism

MAO Inhibitors	Nonselective: Etryptamine • Furazolidone • Hydralazine • Iproclozide • Iproniazid • Isocarboxazid • Isoniazid • Linezolid • Mebanazine • Metryptamine • Nialamide • Phenelzine • Pheniprazine • Phenoxypropazine • Pivalylbenzhydrazine • Procarbazine • Safrazine • Tranylcypromine; MAO-A Selective: Befloxatone • Brofaromine • Cimoxatone • Clorgiline • Harmala Alkaloids (Harmine, Harmaline, Tetrahydroharmine, etc) • Minaprine • Moclobemide • Pirlindole • Toloxatone • Tyrima; MAO-B Selective: Lazabemide • Pargyline • Rasagiline • Selegiline * Note that MAO-B inhibitors also influence norepinephrine/epinephrine levels since they inhibit the breakdown of their precursor dopamine.

COMT Inhibitors	Entacapone • Tolcapone

Others

Precursors	L-Phenylalanine → L-Tyrosine → L-DOPA (Levodopa) → Dopamine • L-DOPS (Droxidopa)

Cofactors	Ferrous Iron (Fe²⁺) • S-Adenosyl-L-Methionine • Vitamin B3 (Niacin, Nicotinamide → NADPH) • Vitamin B6 (Pyridoxine, Pyridoxamine, Pyridoxal → Pyridoxal Phosphate) • Vitamin B9 (Folic Acid → Tetrahydrofolic Acid) • Vitamin C (Ascorbic Acid) • Zinc (Zn²⁺)

Others	Activity Enhancers: Benzofuranylpropylaminopentane (BPAP) • Phenylpropylaminopentane (PPAP); Release Blockers: Bretylium • Guanethidine

Dopaminergics