CRAC channel inhibitor 1 [PMID: 26256403]   

GtoPdb Ligand ID: 10041

Compound class: Synthetic organic
Comment: Inhibitor 1 inhibits the ORAI1 protein component of the CRAC channel [1]. The chemical structure represents a novel ORAI1-specific chemotype that is suitable for the development of more refined CRAC channel inhibitors.
2D Structure
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Physico-chemical Properties
Hydrogen bond acceptors 3
Hydrogen bond donors 2
Rotatable bonds 6
Topological polar surface area 41.13
Molecular weight 302.12
XLogP 4.57
No. Lipinski's rules broken 0
Canonical SMILES CCC(c1ccc(cc1)C)NC(=O)Nc1ccc(cc1)Cl
Isomeric SMILES CCC(c1ccc(cc1)C)NC(=O)Nc1ccc(cc1)Cl
InChI InChI=1S/C17H19ClN2O/c1-3-16(13-6-4-12(2)5-7-13)20-17(21)19-15-10-8-14(18)9-11-15/h4-11,16H,3H2,1-2H3,(H2,19,20,21)
Bioactivity Comments
Ca2+ influx mediated by constitutively opened CRAC channels is inhibited by inhibitor 1 with an IC50 of 200 nM, and 30 μM of the compound maximally inhibits the calcium level by ~80% [1].
Selectivity at ion channels
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Target Sp. Type Action Value Parameter Concentration range (M) Reference
Orai1 Hs Channel blocker - - - - 1