tolinapant   Click here for help

GtoPdb Ligand ID: 12704

Synonyms: ASTX-660 | ASTX660 | compound 27 [PMID: 30091600]
Compound class: Synthetic organic
Comment: Tolinapant (ASTX660) is a non-peptidomimetic inhibitor of cIAP1/2 and XIAP, that was discovered using fragment-based drug design [1,5]. It is a Smac mimetic that induces TNFα-mediated necroptosis (inflammatory cell death) in cancer cells [4]. ASTX660 was designed for anticancer potential, and is active in in vitro and in vivo cancer models [2].
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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

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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 8
Hydrogen bond donors 2
Rotatable bonds 8
Topological polar surface area 80.64
Molecular weight 539.69
XLogP -0.39
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[C@@H]1CN(CC(=O)N2CC(C)(C)C3=NC(=C(CC4=CC=C(C=C4)F)C=C32)CO)[C@H](CN1)CN5CCOC[C@H]5C
Isomeric SMILES O=C(N1C=2C=C(CC3=CC=C(F)C=C3)C(CO)=NC2C(C1)(C)C)CN4C[C@H](NC[C@@H]4CN5[C@@H](COCC5)C)C
InChI InChI=1S/C30H42FN5O3/c1-20-14-35(25(13-32-20)15-34-9-10-39-18-21(34)2)16-28(38)36-19-30(3,4)29-27(36)12-23(26(17-37)33-29)11-22-5-7-24(31)8-6-22/h5-8,12,20-21,25,32,37H,9-11,13-19H2,1-4H3/t20-,21-,25-/m1/s1
InChI Key YCXOHEXZVKOGEV-DNRQZRRGSA-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. Johnson CN, Ahn JS, Buck IM, Chiarparin E, Day JEH, Hopkins A, Howard S, Lewis EJ, Martins V, Millemaggi A et al.. (2018)
A Fragment-Derived Clinical Candidate for Antagonism of X-Linked and Cellular Inhibitor of Apoptosis Proteins: 1-(6-[(4-Fluorophenyl)methyl]-5-(hydroxymethyl)-3,3-dimethyl-1 H,2 H,3 H-pyrrolo[3,2- b]pyridin-1-yl)-2-[(2 R,5 R)-5-methyl-2-([(3R)-3-methylmorpholin-4-yl]methyl)piperazin-1-yl]ethan-1-one (ASTX660).
J Med Chem, 61 (16): 7314-7329. [PMID:30091600]
2. Martins V, Ward G, Smyth T, Reader M, Chessari G, Johnson C, Wilsher N. (2024)
The preclinical pharmacokinetics of Tolinapant-A dual cIAP1/XIAP antagonist with in vivo efficacy.
Pharmacol Res Perspect, 12 (6): e70030. [PMID:39450695]
3. Mita MM, LoRusso PM, Papadopoulos KP, Gordon MS, Mita AC, Ferraldeschi R, Keer H, Oganesian A, Su XY, Jueliger S et al.. (2020)
A Phase I Study of ASTX660, an Antagonist of Inhibitors of Apoptosis Proteins, in Adults with Advanced Cancers or Lymphoma.
Clin Cancer Res, 26 (12): 2819-2826. [PMID:31900279]
4. Wang L, Hu C, Zhao Y, Hu X. (2022)
Novel smac mimetic ASTX660 (Tolinapant) and TNF-α synergistically induce necroptosis in bladder cancer cells in vitro upon apoptosis inhibition.
Biochem Biophys Res Commun, 602: 8-14. [PMID:35247703]
5. Ward GA, Lewis EJ, Ahn JS, Johnson CN, Lyons JF, Martins V, Munck JM, Rich SJ, Smyth T, Thompson NT et al.. (2018)
ASTX660, a Novel Non-peptidomimetic Antagonist of cIAP1/2 and XIAP, Potently Induces TNFα-Dependent Apoptosis in Cancer Cell Lines and Inhibits Tumor Growth.
Mol Cancer Ther, 17 (7): 1381-1391. [PMID:29695633]