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Details

Stereochemistry ACHIRAL
Molecular Formula C9H10N2O
Molecular Weight 162.1885
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of 1-PHENYL-3-PYRAZOLIDINONE

SMILES

O=C1CCN(N1)C2=CC=CC=C2

InChI

InChIKey=CMCWWLVWPDLCRM-UHFFFAOYSA-N
InChI=1S/C9H10N2O/c12-9-6-7-11(10-9)8-4-2-1-3-5-8/h1-5H,6-7H2,(H,10,12)

HIDE SMILES / InChI

Molecular Formula C9H10N2O
Molecular Weight 162.1885
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

1-Phenyl-3-pyrazolidinone (phenidone) is a dual inhibitor of cyclooxygenase (COX) and lipoxygenase (LOX). Phenidone inhibits both the LO (lipoxygenase) and Cox (cyclooxygenase) pathways, the synthesis of Fos-related antigen protein, and is described as an anti-inflammatory and anti-oxidant compound. Phenidone is a potent hypotensive agent in the spontaneously hypertensive rat. Phenidone was also the best in suppressing LPS induced neurotoxicity, where the more potent neuroprotection by phenidone may be attributable to the synergistic effects of dual COX and LOX inhibition. Therefore, dual inhibitors of COX and LOX, such as phenidone, represent valuable candidates for the development of novel drugs for inflammation-related neurodegenerative disorders including PD.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
3.0 µM [IC50]
100.0 nM [IC50]
300.0 nM [IC50]
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown

Approved Use

Unknown
Primary
Unknown

Approved Use

Unknown
PubMed

PubMed

TitleDatePubMed
Effects of some non-steroidal anti-inflammatory drugs and other agents on cyclooxygenase and lipoxygenase activities in some enzyme preparations.
1985 Jun
NRH:quinone oxidoreductase2 (NQO2).
2000 Dec 1
Ion channel-forming alamethicin is a potent elicitor of volatile biosynthesis and tendril coiling. Cross talk between jasmonate and salicylate signaling in lima bean.
2001 Jan
Signaling pathways involved in the A and B receptor-mediated cortisol secretagogue effect of endothelins in the human adrenal cortex.
2001 Mar
N-Aminoindoline derivatives as inhibitors of 5-lipoxygenase.
2001 Mar 26
Degradation of medical x-ray film developing wastewaters by advanced oxidation processes.
2001 Nov
Eicosanoids act in nodulation reactions to bacterial infections in newly emerged adult honey bees, Apis mellifera, but not in older foragers.
2001 Sep
[Lipoxygenase-mediated N-demethylation of pesticides in vitro].
2002 Dec
Modulation by eicosanoid biosynthesis inhibitors of immune responses by the insect Manduca sexta to the pathogenic fungus Metarhizium anisopliae.
2002 Feb
Antioxidant activity of the methanol fraction of Pluchea indica root extract.
2002 Jun
12-lipoxygenase in opioid-induced delayed cardioprotection: gene array, mass spectrometric, and pharmacological analyses.
2003 Apr 4
Dual positional specificity and expression of non-traditional lipoxygenase induced by wounding and methyl jasmonate in maize seedlings.
2003 Aug
Anti-inflammatory activity of (E)-1-(3,4-dimethoxyphenyl) butadiene from Zingiber cassumunar Roxb.
2003 Aug
Toxicity of human monocytic THP-1 cells and microglia toward SH-SY5Y neuroblastoma cells is reduced by inhibitors of 5-lipoxygenase and its activating protein FLAP.
2003 Mar
Transcriptional activation of Igl, the gene for indole formation in Zea mays: a structure-activity study with elicitor-active N-acyl glutamines from insects.
2004 Apr
Molecular mechanism of nucleotide-induced primary granule release in human neutrophils: role for the P2Y2 receptor.
2004 Feb
Evolutionary change from induced to constitutive expression of an indirect plant resistance.
2004 Jul 8
Micellar electrokinetic chromatography at low pH with polyelectrolyte-coated capillaries.
2004 Jul 9
Synthesis and biological evaluation of a new class of acyl derivatives of 3-amino-1-phenyl-4,5-dihydro-1H-pyrazol-5-one as potential dual cyclooxygenase (COX-1 and COX-2) and human lipoxygenase (5-LOX) inhibitors.
2005 Apr
Phenidone, a dual inhibitor of cyclooxygenases and lipoxygenases, ameliorates rat paralysis in experimental autoimmune encephalomyelitis by suppressing its target enzymes.
2005 Feb 28
Synthesis and biological evaluation of new phenidone analogues as potential dual cyclooxygenase (COX-1 and COX-2) and human lipoxygenase (5-LOX) inhibitors.
2005 Jan
Topical antiinflammatory effects of the ether extract from Protium kleinii and alpha-amyrin pentacyclic triterpene.
2005 Jan 10
Binding investigation of human 5-lipoxygenase with its inhibitors by SPR technology correlating with molecular docking simulation.
2006 Apr
Case report: Hydroquinone and/or glutaraldehyde induced acute myeloid leukaemia?
2006 Jul 26
Anti-inflammatory and anti-oxidant activity of a new class of phenyl-pyrazolone derivatives.
2006 Mar
Eicosanoid biosynthesis inhibitors influence mortality of Pieris brassicae larvae co-injected with fungal conidia.
2006 Nov
The role of arachidonic acid and its metabolites in insulin secretion from human islets of langerhans.
2007 Jan
Activity of the lipoxygenase inhibitor 1-phenyl-3-pyrazolidinone (phenidone) and derivatives on the inhibition of adhesion molecule expression on human umbilical vascular endothelial cells.
2008 Mar
Phenidone protects the nigral dopaminergic neurons from LPS-induced neurotoxicity.
2008 Nov 7
Eicosanoids mediate nodulation reactions to a mollicute bacterium in larvae of the blowfly, Chrysomya megacephala.
2009 Mar
Inhibition of lipoxygenase affects induction of both direct and indirect plant defences against herbivorous insects.
2010 Feb
Involvement of lipoxygenase in elicitor-stimulated sanguinarine accumulation in Papaver somniferum suspension cultures.
2010 Oct-Nov
Patents

Patents

Sample Use Guides

Rats: phenidone (25, 50 or 100 mg/kg) was administered orally five times every 12 h before the injection of KA (10 mg/kg, i.p.).
Route of Administration: Oral
Phenidone (3-30 uM) markedly inhibited leukotriene (LT) C4-induced contractions of the isolated guinea-pig trachea in the presence of indomethacin.
Substance Class Chemical
Created
by admin
on Fri Dec 15 19:08:46 GMT 2023
Edited
by admin
on Fri Dec 15 19:08:46 GMT 2023
Record UNII
H0U5612P6K
Record Status Validated (UNII)
Record Version
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Name Type Language
1-PHENYL-3-PYRAZOLIDINONE
MI  
Systematic Name English
1-PHENYL-3-PYRAZOLIDONE
Systematic Name English
1-PHENYL-3-PYRAZOLIDINONE [MI]
Common Name English
PHENIDONE
Common Name English
NSC-30306
Code English
Code System Code Type Description
EPA CompTox
DTXSID1049433
Created by admin on Fri Dec 15 19:08:46 GMT 2023 , Edited by admin on Fri Dec 15 19:08:46 GMT 2023
PRIMARY
ECHA (EC/EINECS)
202-155-1
Created by admin on Fri Dec 15 19:08:46 GMT 2023 , Edited by admin on Fri Dec 15 19:08:46 GMT 2023
PRIMARY
NSC
30306
Created by admin on Fri Dec 15 19:08:46 GMT 2023 , Edited by admin on Fri Dec 15 19:08:46 GMT 2023
PRIMARY
CAS
92-43-3
Created by admin on Fri Dec 15 19:08:46 GMT 2023 , Edited by admin on Fri Dec 15 19:08:46 GMT 2023
PRIMARY
WIKIPEDIA
PHENIDONE
Created by admin on Fri Dec 15 19:08:46 GMT 2023 , Edited by admin on Fri Dec 15 19:08:46 GMT 2023
PRIMARY
PUBCHEM
7090
Created by admin on Fri Dec 15 19:08:46 GMT 2023 , Edited by admin on Fri Dec 15 19:08:46 GMT 2023
PRIMARY
FDA UNII
H0U5612P6K
Created by admin on Fri Dec 15 19:08:46 GMT 2023 , Edited by admin on Fri Dec 15 19:08:46 GMT 2023
PRIMARY
MERCK INDEX
m8689
Created by admin on Fri Dec 15 19:08:46 GMT 2023 , Edited by admin on Fri Dec 15 19:08:46 GMT 2023
PRIMARY Merck Index