Nitecapone

Nitecapone
Clinical data


ATC code	None
Identifiers
IUPAC name 3-[(3,4-Dihydroxy-5-nitrophenyl)methylidene]pentane-2,4-dione
CAS Number	116313-94-1
PubChem CID	5464105
ChemSpider	4576539
UNII	98BS722498
KEGG	D03241
ChEMBL	CHEMBL167055
Chemical and physical data
Formula	C₁₂H₁₁NO₆
Molar mass	265.219 g/mol
3D model (JSmol)	Interactive image
SMILES [O-][N+](=O)c1cc(\C=C(/C(=O)C)C(=O)C)cc(O)c1O
InChI InChI=1S/C12H11NO6/c1-6(14)9(7(2)15)3-8-4-10(13(18)19)12(17)11(16)5-8/h3-5,16-17H,1-2H3 Key:UPMRZALMHVUCIN-UHFFFAOYSA-N

Nitecapone (INN; OR-462) is a drug which acts as a selective inhibitor of the enzyme catechol O-methyl transferase (COMT).^[1]^[2] It was patented as an antiparkinsonian agent but was never marketed.^[1]

References

1 2 F.. Macdonald (1997). Dictionary of Pharmacological Agents. CRC Press. p. 1635. ISBN 978-0-412-46630-4. Retrieved 20 May 2012.
↑ Nissinen E, Lindén IB, Schultz E, Kaakkola S, Männistö PT, Pohto P (August 1988). "Inhibition of catechol-O-methyltransferase activity by two novel disubstituted catechols in the rat". European Journal of Pharmacology. 153 (2-3): 263–9. PMID 3181288. doi:10.1016/0014-2999(88)90614-0.

Antiparkinson agents (N04)

Dopaminergics

DA precursors/prodrugs	Levodopa^# Melevodopa
DA receptor agonists	Apomorphine Bromocriptine Cabergoline Dihydroergocryptine Lisuride Pergolide Piribedil Pramipexole Ropinirole Rotigotine
MAO-B inhibitors	Rasagiline Selegiline
COMT inhibitors	Entacapone Opicapone Tolcapone
AAAD inhibitors	Benserazide Carbidopa^#

Anticholinergics

Others

^#WHO-EM
^‡Withdrawn from market
Clinical trials:
- ^†Phase III
- ^§Never to phase III

Monoamine metabolism modulators

Common
(non-specific)

AAAD

Substrates→Products: L-DOPA (levodopa)→Dopamine
5-HTP→Serotonin
L-Histidine→Histamine
Phenylalanine→Phenethylamine
L-Tyrosine→Tyramine
Tryptophan→Tryptamine

MAO

Substrates→Products (with ALDH/ALR): Epinephrine (adrenaline)→DHMA Metanephrine→MHPG/VMA Norepinephrine (noradrenaline)→DHMA Normetanephrine→MHPG/VMA Dopamine→DOPAC 3-Methoxytyramine→HVA Serotonin→5-HIAA Inhibitors: Non-selective: Benmoxin Caroxazone Echinopsidine Furazolidone Guineesine Hydralazine Indantadol Iproclozide Iproniazid Isocarboxazid Isoniazid Linezolid Mebanazine Metfendrazine Nialamide Octamoxin Paraxazone Phenelzine Pheniprazine Phenoxypropazine Pivhydrazine Procarbazine Safrazine Tranylcypromine
Inhibitors: MAO-A-selective: Amiflamine Bazinaprine Befloxatone Brofaromine Cimoxatone Clorgiline CX157 (Tyrima) Eprobemide Esuprone Harmala alkaloids (e.g., harmine, harmaline, harman, norharman, tetrahydroharmine) Methylene blue Metralindole Minaprine Moclobemide Pirlindole Sercloremine Tetrindole Toloxatone
Inhibitors: MAO-B selective: Almoxatone D-Deprenyl Ethanol Ladostigil Lazabemide Milacemide Mofegiline Nicotine Pargyline^‡ Rasagiline Safinamide Selegiline (L-Deprenyl)

Phenethylamines
(dopamine, epinephrine,
norepinephrine)

PAH	Substrates→Products: Phenylalanine→Tyrosine Inhibitors: 3,4-Dihydroxystyrene
TH	Substrates→Products: Tyrosine→L-DOPA (levodopa) Inhibitors: 2-Hydroxyestradiol 2-Hydroxyestrone 3-Iodotyrosine Aquayamycin Bulbocapnine Metirosine Oudenone
DBH	Substrates→Products: Dopamine→Norepinephrine (Noradrenaline) Inhibitors: Bupicomide Disulfiram Dopastin Fusaric acid Nepicastat Phenopicolinic acid Tropolone
PNMT	Substrates→Products: Norepinephrine (noradrenaline)→Epinephrine (adrenaline) Inhibitors: CGS-19281A SKF-64139 SKF-7698
COMT	Substrates→Products: Dopamine→3-Methoxytyramine DOPAC→Homovanillic acid Norepinephrine→Normetanephrine Epinephrine→Metanephrine DOPEG→MOPEG DOMA→VMA 2-Hydroxyestradiol→2-Methoxyestradiol 2-Hydroxyestrone→2-Methoxyestrone 4-Hydroxyestradiol→4-Methoxyestradiol 4-Hydroxyestrone→4-Methoxyestrone Inhibitors: 2-Hydroxyestradiol 2-Hydroxyestrone Entacapone Nitecapone Opicapone Tolcapone

Tryptamines
(serotonin, melatonin)

TPH	Substrates→Products: Tryptophan→5-HTP Inhibitors: AGN-2979 Fenclonine (PCPA) Telotristat ethyl
AANAT	Substrates→Products: Serotonin→N-Acetylserotonin
ASMT	Substrates→Products: N-Acetylserotonin→Melatonin

Histamine

HDC	Substrates→Products: L-Histidine→Histamine Inhibitors: Catechin Meciadanol Naringenin Tritoqualine
HNMT	Substrates→Products: Histamine→N-Methylhistamine Inhibitors: Amodiaquine Diphenhydramine Harmaline Metoprine Quinacrine SKF-91,488 Tacrine
DAO	Substrates→Products: Histamine→Imidazole acetic acid Inhibitors: Pimagedine (aminoguanidine)

See also: Receptor/signaling modulators • Adrenergics • Dopaminergics • Melatonergics • Serotonergics • Monoamine reuptake inhibitors • Monoamine releasing agents • Monoamine neurotoxins

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