orelabrutinib   Click here for help

GtoPdb Ligand ID: 10629

Synonyms: example 3 [WO2015048662A2] | ICP-022 | ICP022
Approved drug Immunopharmacology Ligand
orelabrutinib is an approved drug (China (2020))
Compound class: Synthetic organic
Comment: The chemical structure that was submitted to the WHO for the INN orelabrutinib, is identical to the structure of example 3 that is claimed as a BTK inhibitor in patent WO2015048662A2 [2]. The inhibitors in WO2015048662A2 are claimed for their potential to treat cancers [1] and inflammatory/autoimmune diseases that are mediated, at least in part, by Bruton's tyrosine kinase (BTK). Innocare Pharma have declared the ICP-022>orelabrutinib association on their company news webpage. Orelabrutinib is an orally administered, potent, irreversible and selective BTK-inhibitor.
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 5
Hydrogen bond donors 1
Rotatable bonds 7
Topological polar surface area 85.52
Molecular weight 427.19
XLogP 3.62
No. Lipinski's rules broken 0
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Canonical SMILES C=CC(=O)N1CCC(CC1)c1ccc(c(n1)c1ccc(cc1)Oc1ccccc1)C(=O)N
Isomeric SMILES C=CC(=O)N1CCC(CC1)c1ccc(c(n1)c1ccc(cc1)Oc1ccccc1)C(=O)N
InChI InChI=1S/C26H25N3O3/c1-2-24(30)29-16-14-18(15-17-29)23-13-12-22(26(27)31)25(28-23)19-8-10-21(11-9-19)32-20-6-4-3-5-7-20/h2-13,18H,1,14-17H2,(H2,27,31)
Bioactivity Comments
1 μM of ICP-022 inhibits BTK kinase activity by >99% in vitro [2]. In comparison Src activity is inhibited by only 23% at this concentration of ICP-022. Percentage inhibition of other Src family kinase (% in brackets) were: BLK (51), LCK (11), LYN (3), YES (8), FGR, FYN and HCK (no inhibition detected).
Selectivity at enzymes
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Target Sp. Type Action Value Parameter Concentration range (M) Reference
Bruton tyrosine kinase Hs Inhibitor Inhibition 8.4 pIC50 - 2
pIC50 8.4 (IC50 4.4x10-9 M) [2]
Description: Biochemical inhibition determined using a proprietary ADP-Glo kinase assay.