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EB-42168   Click here for help

GtoPdb Ligand ID: 13903

Synonyms: EB42168 | LRRK2 inhibitor 30 [PMID: 33197196]
Compound class: Synthetic organic
Comment: This is a small molecule selective inhibitor of the activating LRRK2 mutation G2019S [2]. LRRK2G2019S is a genetic risk factor for the development of Parkinson's disease. A CAS registry number match between SciFinder and probechem.com suggests this is the structure for ESCAPE Bio's LRRK2G2019S inhibitor EB-42168 [1], although the name to structure has not been definitively disclosed (May 2025).
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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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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 12
Hydrogen bond donors 2
Rotatable bonds 5
Topological polar surface area 121.88
Molecular weight 500.56
XLogP 1.15
No. Lipinski's rules broken 2

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 CC1=C(C(=O)NC2=CC3=C(C=C2)NN=C3C4=CC(=NC=C4)N5CCOCC5)C(C)(C)N6C(=NN=N6)N1C
Isomeric SMILES CN1C2=NN=NN2C(C)(C)C(C(=O)NC3=CC=C4NN=C(C4=C3)C5=CC=NC(=C5)N6CCOCC6)=C1C
InChI InChI=1S/C25H28N10O2/c1-15-21(25(2,3)35-24(33(15)4)30-31-32-35)23(36)27-17-5-6-19-18(14-17)22(29-28-19)16-7-8-26-20(13-16)34-9-11-37-12-10-34/h5-8,13-14H,9-12H2,1-4H3,(H,27,36)(H,28,29)
InChI Key VTISWVCQZDZSAV-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. Bright JM, Carlisle HJ, Toda AMA, Murphy M, Molitor TP, Wren P, Andruska KM, Liu E, Barlow C. (2021)
Differential Inhibition of LRRK2 in Parkinson's Disease Patient Blood by a G2019S Selective LRRK2 Inhibitor.
Mov Disord, 36 (6): 1362-1371. [PMID:33836114]
2. Garofalo AW, Bright J, De Lombaert S, Toda AMA, Zobel K, Andreotti D, Beato C, Bernardi S, Budassi F, Caberlotto L et al.. (2020)
Selective Inhibitors of G2019S-LRRK2 Kinase Activity.
J Med Chem, 63 (23): 14821-14839. [PMID:33197196]