belnacasan   Click here for help

GtoPdb Ligand ID: 9035

Synonyms: HMR3480 | VX-765
Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: Belnacasan is a prodrug of VRT-043198, a caspase-1 inhibitor that was developed by Vertex. Pharmacological inhibition of caspase-1 is being investigated as a mechanism to reduce pro-inflammatory cytokine (predominantly IL-1β) production as a novel treatment of inflammatory diseases [1]. Inhibition of caspase-1 is a small molecule strategy developed as an alternative to the use of anti-IL-1β neutralising antibodies, such as canakinumab, or the dimeric fusion protein rilonacept that acts as a IL-1 trap.
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 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 10
Hydrogen bond donors 3
Rotatable bonds 11
Topological polar surface area 140.06
Molecular weight 508.21
XLogP 2
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 CCOC1OC(=O)CC1NC(=O)C1CCCN1C(=O)C(C(C)(C)C)NC(=O)c1ccc(c(c1)Cl)N
Isomeric SMILES CCO[C@@H]1OC(=O)C[C@@H]1NC(=O)[C@@H]1CCCN1C(=O)[C@H](C(C)(C)C)NC(=O)c1ccc(c(c1)Cl)N
InChI InChI=1S/C24H33ClN4O6/c1-5-34-23-16(12-18(30)35-23)27-21(32)17-7-6-10-29(17)22(33)19(24(2,3)4)28-20(31)13-8-9-15(26)14(25)11-13/h8-9,11,16-17,19,23H,5-7,10,12,26H2,1-4H3,(H,27,32)(H,28,31)/t16-,17-,19+,23+/m0/s1
InChI Key SJDDOCKBXFJEJB-MOKWFATOSA-N
References
1. Wannamaker W, Davies R, Namchuk M, Pollard J, Ford P, Ku G, Decker C, Charifson P, Weber P, Germann UA et al.. (2007)
(S)-1-((S)-2-{[1-(4-amino-3-chloro-phenyl)-methanoyl]-amino}-3,3-dimethyl-butanoyl)-pyrrolidine-2-carboxylic acid ((2R,3S)-2-ethoxy-5-oxo-tetrahydro-furan-3-yl)-amide (VX-765), an orally available selective interleukin (IL)-converting enzyme/caspase-1 inhibitor, exhibits potent anti-inflammatory activities by inhibiting the release of IL-1beta and IL-18.
J Pharmacol Exp Ther, 321 (2): 509-16. [PMID:17289835]