narazaciclib   Click here for help

GtoPdb Ligand ID: 11879

Synonyms: compound 7x [PMID: 24417566] | ON-123300 | ON123300
Compound class: Synthetic organic
Comment: The chemical structure for narazaciclib was revealed in WHO proposed INN list 126 (Jan 2022), in which it was described as an cyclin dependent kinase (CDK) inhibitor and antineoplastic agent. We matched the structure to Onconova Therapeutics' clinical candidate ON123300 via PubChem. This compound was reported as a CDK4 and AMPK-related kinase 5 (ARK5 a.k.a. NUAK family kinase 1; NUAK1) inhibitor in 2014 [1]. It is being administered orally in clinical trial.
Click here for help

Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

✖

View interactive charts of activity data across species
2D Structure
Click here for help

2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

✖
Click here for structure editor
Physico-chemical Properties
Click here for help

Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the CDK toolkit. All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

✖
Hydrogen bond acceptors 6
Hydrogen bond donors 1
Rotatable bonds 4
Topological polar surface area 90.08
Molecular weight 429.23
XLogP 3.46
No. Lipinski's rules broken 0
SMILES / InChI / InChIKey
Click here for help

SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

✖
Canonical SMILES N#Cc1cc2cnc(nc2n(c1=O)C1CCCC1)Nc1ccc(cc1)N1CCN(CC1)C
Isomeric SMILES C1(CCCC1)n1c(=O)c(cc2c1nc(nc2)Nc1ccc(cc1)N1CCN(CC1)C)C#N
InChI InChI=1S/C24H27N7O/c1-29-10-12-30(13-11-29)20-8-6-19(7-9-20)27-24-26-16-18-14-17(15-25)23(32)31(22(18)28-24)21-4-2-3-5-21/h6-9,14,16,21H,2-5,10-13H2,1H3,(H,26,27,28)
InChI Key VADOZMZXXRBXNY-UHFFFAOYSA-N
No information available.
Summary of Clinical Use Click here for help
ON123300 has been entered into an early stage clinical study, to determine safety, tolerability, pharmacokinetics and optimal dose in patients with advanced solid tumours.
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT04739293 Study of ON 123300 in Patients With Advanced Cancer Phase 1 Interventional Onconova Therapeutics, Inc.