compound A34 [PMID: 35635004]   Click here for help

GtoPdb Ligand ID: 12018

Compound class: Synthetic organic
Comment: Compound A34 was reported as a selective FGFR4 inhibitor, with in vitro and in vivo anti-cancer activities [1]. In vitro A34 inhibits both the wild type FGFR4 and the FGFR4V550L mutant (IC50s 5.4 nM and 98.2 nM respectively).
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
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.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

✖
Canonical SMILES CC#CC(=O)Nc1cc(c(cc1N1C[C@H]2C[C@@H]1CO2)OC)c1ncc2c(c1)n(CC)c(=O)c(c2)c1c(Cl)c(OC)cc(c1Cl)OC
Isomeric SMILES [C@H]12OC[C@H](N(C1)c1c(cc(c(c1)OC)c1ncc3cc(c(=O)n(c3c1)CC)c1c(c(cc(c1Cl)OC)OC)Cl)NC(=O)C#CC)C2
InChI InChI=1S/C34H32Cl2N4O6/c1-6-8-30(41)38-24-11-21(27(43-3)13-26(24)40-16-20-10-19(40)17-46-20)23-12-25-18(15-37-23)9-22(34(42)39(25)7-2)31-32(35)28(44-4)14-29(45-5)33(31)36/h9,11-15,19-20H,7,10,16-17H2,1-5H3,(H,38,41)/t19-,20-/m1/s1
InChI Key VDIDNMGZRIMBKL-WOJBJXKFSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
No information available.
Summary of Clinical Use Click here for help
In vitro A34 inhibits the FGFR4V550L mutant more efficiently than the irreversible FGF4R inhibitor fisogatinib/BLU-554 (IC50s 89.2 nM and >1 μM respectively) [1]. A34 demonstrated anti-tumour activity in a murine Hep-3B hepatocellular carcinoma (HCC) xenograft model. Its kinase selectivity is very good, and its in vitro- and in vivo-determined PK parameters are favourable, with the risk of hERG channel-mediated cardiotoxicity assessed as being low.