compound 18c [PMID:19143533]   Click here for help

GtoPdb Ligand ID: 10589

Synonyms: BMS compound 1 [1]
Compound class: Synthetic organic
Comment: Compound 18c is a calcium-sensing receptor (CaSR) negative allosteric modulator (NAM) [2]. It utilises a second allosteric binding site that is topographically distinct from the NPS2143 binding site [1]. Negative modulation of CaSR promotes release of parathyroid hormone (PTH). Transient release of PTH elicits a bone anabolic response, so molecules that act as rapid/transient negative CaSR modulators are being explored for potential as novel agents to treat bone-loss diseases.
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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 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 5
Hydrogen bond donors 3
Rotatable bonds 15
Topological polar surface area 111.17
Molecular weight 557.25
XLogP 4.98
No. Lipinski's rules broken 1
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 OCC(Nc1ccc(c(n1)c1cc(OC)c(c(c1)OC)OC)C(=O)NCCOc1ccccc1)Cc1ccccc1
Isomeric SMILES OC[C@@H](Nc1ccc(c(n1)c1cc(OC)c(c(c1)OC)OC)C(=O)NCCOc1ccccc1)Cc1ccccc1
InChI InChI=1S/C32H35N3O6/c1-38-27-19-23(20-28(39-2)31(27)40-3)30-26(32(37)33-16-17-41-25-12-8-5-9-13-25)14-15-29(35-30)34-24(21-36)18-22-10-6-4-7-11-22/h4-15,19-20,24,36H,16-18,21H2,1-3H3,(H,33,37)(H,34,35)/t24-/m0/s1
InChI Key FCBOUJYKAGWYQM-DEOSSOPVSA-N
Bioactivity Comments
Intravenous administration of compound 18c promotes rapid and transient PTH release in an in vivo model [2].
Selectivity at GPCRs
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
CaS receptor Hs Allosteric modulator Negative 7.1 pIC50 - 2
⤷ pIC50 7.1 (IC50 7.6x10-8 M) [2]
Description: Measuring antagonism of internal calcium mobilization in HEK293 cells expressing human CaSR in a FLIPR assay, using external calcium as agonist.