preladenant   Click here for help

GtoPdb Ligand ID: 5614

Synonyms: SCH-420814 | SCH420814
Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: Preladenant (SCH 420814) was an adenosine A2A receptor antagonist being developed for Parkinson's disease. Promising Phase 2 trial results did not translate to a significant effect over placebo in Phase 3 trial. Development has been discontinued.
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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 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.

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Hydrogen bond acceptors 8
Hydrogen bond donors 1
Rotatable bonds 9
Topological polar surface area 125
Molecular weight 503.24
XLogP 2.73
No. Lipinski's rules broken 0
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.

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Canonical SMILES COCCOc1ccc(cc1)N1CCN(CC1)CCn1ncc2c1nc(N)n1c2nc(n1)c1ccco1
Isomeric SMILES COCCOc1ccc(cc1)N1CCN(CC1)CCn1ncc2c1nc(N)n1c2nc(n1)c1ccco1
InChI InChI=1S/C25H29N9O3/c1-35-15-16-36-19-6-4-18(5-7-19)32-11-8-31(9-12-32)10-13-33-23-20(17-27-33)24-28-22(21-3-2-14-37-21)30-34(24)25(26)29-23/h2-7,14,17H,8-13,15-16H2,1H3,(H2,26,29)
InChI Key DTYWJKSSUANMHD-UHFFFAOYSA-N
References
1. Factor SA, Wolski K, Togasaki DM, Huyck S, Cantillon M, Ho TW, Hauser RA, Pourcher E. (2013)
Long-term safety and efficacy of preladenant in subjects with fluctuating Parkinson's disease.
Mov Disord, 28 (6): 817-20. [PMID:23589371]
2. Hauser RA, Cantillon M, Pourcher E, Micheli F, Mok V, Onofrj M, Huyck S, Wolski K. (2011)
Preladenant in patients with Parkinson's disease and motor fluctuations: a phase 2, double-blind, randomised trial.
Lancet Neurol, 10 (3): 221-9. [PMID:21315654]
3. Müller CE, Ferré S. (2007)
Blocking striatal adenosine A2A receptors: a new strategy for basal ganglia disorders.
Recent Pat CNS Drug Discov, 2 (1): 1-21. [PMID:18221214]
4. Szabó N, Kincses ZT, Vécsei L. (2011)
Novel therapy in Parkinson's disease: adenosine A(2A) receptor antagonists.
Expert Opin Drug Metab Toxicol, 7 (4): 441-55. [PMID:21332415]