emupertinib   Click here for help

GtoPdb Ligand ID: 13742

Synonyms: example 37 [WO2020166680A1]
Compound class: Synthetic organic
Comment: The chemical structure for emupertinib was derived from WHO proposed INN list 132 (Feb 2025), in which it is listed as an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor with antineoplastic potential. This is one of the EGFR inhibitor compounds claimed in Taiho Pharma patent WO2020166680A1 [1]. Analysis of Tiaho's decalred pipeline, suggests that emupertinib may be the INN for their candidate TAS3351 (intended for NSCL, but target not declared), as it can't be TAS6417 which has a different chemical structure and is assigned the INN zipalertinib. We await formal declaration of any name-to-structure association.
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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.

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View interactive charts of activity data across species
2D Structure
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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.

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

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were 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/). 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.

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Hydrogen bond acceptors 9
Hydrogen bond donors 2
Rotatable bonds 5
Topological polar surface area 120.16
Molecular weight 514.58
XLogP 0.8
No. Lipinski's rules broken 1

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/)
SMILES / InChI / InChIKey
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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/)

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Canonical SMILES C#CC1=C(C2=CN=C3C=CC=CC3=C2)C4=C(N=CN=C4N)N1C56CCC(CC5)(C6)NC(=O)C7=CN=C(C)C=N7
Isomeric SMILES CC1=CN=C(C=N1)C(=O)NC23CCC(C2)(CC3)N4C(=C(C5=C(N=CN=C54)N)C6=CC7=CC=CC=C7N=C6)C#C
InChI InChI=1S/C30H26N8O/c1-3-23-24(20-12-19-6-4-5-7-21(19)34-14-20)25-26(31)35-17-36-27(25)38(23)30-10-8-29(16-30,9-11-30)37-28(39)22-15-32-18(2)13-33-22/h1,4-7,12-15,17H,8-11,16H2,2H3,(H,37,39)(H2,31,35,36)
InChI Key NKRUHCMBVJSNAB-UHFFFAOYSA-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/)
References
1. Yamamoto F, Mizutani T, Kasuga H, Fuchida Y, Hara S, Kobayakawa Y, Ogino E. (2020)
7h-pyrrolo[2,3-d]pyrimidine-4-amine derivative.
Patent number: WO2020166680A1. Assignee: Taiho Pharmaceutical Co., Ltd.. Priority date: 14/02/2020. Publication date: 20/08/2020.