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Details

Stereochemistry ACHIRAL
Molecular Formula C13H9NO
Molecular Weight 195.2167
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of PHENANTHRIDONE

SMILES

O=C1NC2=C(C=CC=C2)C3=C1C=CC=C3

InChI

InChIKey=RZFVLEJOHSLEFR-UHFFFAOYSA-N
InChI=1S/C13H9NO/c15-13-11-7-2-1-5-9(11)10-6-3-4-8-12(10)14-13/h1-8H,(H,14,15)

HIDE SMILES / InChI

Molecular Formula C13H9NO
Molecular Weight 195.2167
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Phenanthridinone, an isoquinoline derivative, is a potent poly(ADP-ribose)polymerase 1 inhibitor. It could be considered as a potent immunomodulator, and also as the prototype of a new class of adjuncts in cancer chemotherapy.

CNS Activity

Curator's Comment: An in vitro lesion model using the neonatal rat spinal cord has recently shown PARP-1 overactivity to be closely related to neuronal losses after an excitotoxic challenge by kainate: in this system, the PARP-1 inhibitor phenanthridinone appeared to be a moderate histological neuroprotector.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
7.07 null [pIC50]
0.054 µM [IC50]
0.088 µM [IC50]
11.95 µM [Kd]
6.2 µM [Kd]
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
PubMed

PubMed

TitleDatePubMed
6,(5H)-phenanthridinone protects against carbon tetrachloride-induced cytotoxicity in human HepG2 cells.
2011-04-08
Synthesis and evaluation of substituted benzoisoquinolinones as potent inhibitors of Chk1 kinase.
2007-11-15
A key role for poly(ADP-ribose) polymerase-1 activity during human dendritic cell maturation.
2007-07-01
Effects of proximity on the relaxation dynamics of flindersine and 6(5H)-phenanthridinone.
2007-01-18
Discovery of potent poly(ADP-ribose) polymerase-1 inhibitors from the modification of indeno[1,2-c]isoquinolinone.
2005-08-11
Fungal biotransformation of benzo[f]quinoline, benzo[h]quinoline, and phenanthridine.
2005-05
The monofunctional alkylating agent N-methyl-N'-nitro-N-nitrosoguanidine triggers apoptosis through p53-dependent and -independent pathways.
2005-01-01
Dual regulation of AP-2alpha transcriptional activation by poly(ADP-ribose) polymerase-1.
2004-08-15
An enzymatic assay for poly(ADP-ribose) polymerase-1 (PARP-1) via the chemical quantitation of NAD(+): application to the high-throughput screening of small molecules as potential inhibitors.
2004-03-01
Hepatoprotective effects of 6(5H)-phenanthridinone from chemical-induced centrilobular necrosis.
2004
Nicotinamide is a potent inhibitor of proinflammatory cytokines.
2003-01
Inhibitors of poly(ADP-ribose) polymerase-1 suppress transcriptional activation in lymphocytes and ameliorate autoimmune encephalomyelitis in rats.
2002-11
Poly(ADP-ribose) polymerase inhibitors attenuate necrotic but not apoptotic neuronal death in experimental models of cerebral ischemia.
2001-09
Novel inhibitors of poly(ADP-ribose) polymerase/PARP1 and PARP2 identified using a cell-based screen in yeast.
2001-05-15
Comparative metabolism of phenanthridine by carp (Cyprinus carpio) and midge larvae (Chironomus riparius).
2001
Excitotoxicity in the lung: N-methyl-D-aspartate-induced, nitric oxide-dependent, pulmonary edema is attenuated by vasoactive intestinal peptide and by inhibitors of poly(ADP-ribose) polymerase.
1996-05-14
N-acetylcysteine protects lymphocytes from nitrogen mustard-induced apoptosis.
1996-05-03
Patents

Sample Use Guides

In Vivo Use Guide
Unknown
Route of Administration: Unknown
In Vitro Use Guide
The ability of phenanthridinone, a new potent poly(ADP-ribose)polymerase (PARP) inhibitor, to potentiate the effect of ionizing radiation on tumor cells was evaluated. RDM4 murine lymphoma cells were irradiated using a 60Co panoramic source and then examined for their growth, cell cycle distribution, and apoptosis. Phenanthridinone (100 microM) was found to inhibit more than 90% of the PARP activity in control and irradiated cells. It was found to sharply increase the radiation-induced inhibition of cell proliferation. Indeed, at 2.5 Gy the relative cell number of phenanthridinone-treated cells was 60% below control levels. At the same radiation dose, the G2M arrest was also significantly reinforced by the addition of phenanthridinone. Furthermore, this PARP inhibitor was shown to significantly increase the amount of DNA fragmentation. Comparable results were obtained with 3-aminobenzamide, another PARP inhibitor, but at concentrations 200-fold higher.
Substance Class Chemical
Created
by admin
on Mon Mar 31 22:25:47 GMT 2025
Edited
by admin
on Mon Mar 31 22:25:47 GMT 2025
Record UNII
AVQ13AUB5J
Record Status Validated (UNII)
Record Version
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Name Type Language
PHENANTHRIDONE
Systematic Name English
NSC-11021
Preferred Name English
PJ 97A
Common Name English
6(5H)-PHENANTHRIDINONE
Systematic Name English
6-PHENANTHRIDONE
Systematic Name English
PHENANTHRIDINONE
Systematic Name English
5H-PHENANTHRIDIN-6-ONE
Systematic Name English
6-PHENANTHRIDINOL
Systematic Name English
6-PHENANTHRIDINONE
Systematic Name English
NSC-61083
Code English
NSC-40943
Code English
Code System Code Type Description
NSC
40943
Created by admin on Mon Mar 31 22:25:47 GMT 2025 , Edited by admin on Mon Mar 31 22:25:47 GMT 2025
PRIMARY
NSC
61083
Created by admin on Mon Mar 31 22:25:47 GMT 2025 , Edited by admin on Mon Mar 31 22:25:47 GMT 2025
PRIMARY
CHEBI
75292
Created by admin on Mon Mar 31 22:25:47 GMT 2025 , Edited by admin on Mon Mar 31 22:25:47 GMT 2025
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CAS
1015-89-0
Created by admin on Mon Mar 31 22:25:47 GMT 2025 , Edited by admin on Mon Mar 31 22:25:47 GMT 2025
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EPA CompTox
DTXSID0074423
Created by admin on Mon Mar 31 22:25:47 GMT 2025 , Edited by admin on Mon Mar 31 22:25:47 GMT 2025
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FDA UNII
AVQ13AUB5J
Created by admin on Mon Mar 31 22:25:47 GMT 2025 , Edited by admin on Mon Mar 31 22:25:47 GMT 2025
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NSC
11021
Created by admin on Mon Mar 31 22:25:47 GMT 2025 , Edited by admin on Mon Mar 31 22:25:47 GMT 2025
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ECHA (EC/EINECS)
213-804-3
Created by admin on Mon Mar 31 22:25:47 GMT 2025 , Edited by admin on Mon Mar 31 22:25:47 GMT 2025
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PUBCHEM
1853
Created by admin on Mon Mar 31 22:25:47 GMT 2025 , Edited by admin on Mon Mar 31 22:25:47 GMT 2025
PRIMARY