RORC2 inverse agonist 66 [PMID: 30130103]   Click here for help

GtoPdb Ligand ID: 10078

Synonyms: example 5 [WO2016046755A1]
Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: This compound is reported as an orally active, inverse agonist of the nuclear hormone receptor RORγt (RORC2) [2]. RORγt is a drug target that is being expoited for the treatment of autoimmune conditions, as its inhibition reduces production of pro-inflammatory IL-17. The chemical structure is claimed as Example 5 in Pfizer's patent WO2016046755A1 [1].
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 6
Hydrogen bond donors 1
Rotatable bonds 7
Topological polar surface area 91.02
Molecular weight 497.2
XLogP 4.15
No. Lipinski's rules broken 0
SMILES / InChI / InChIKey
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Canonical SMILES N#Cc1cccc(c1)C(=O)Nc1cnc2c(c1C(F)(F)F)c(cn2C)C1CCN(CC1)C(=O)C(C)C
Isomeric SMILES N#Cc1cccc(c1)C(=O)Nc1cnc2c(c1C(F)(F)F)c(cn2C)C1CCN(CC1)C(=O)C(C)C
InChI InChI=1S/C26H26F3N5O2/c1-15(2)25(36)34-9-7-17(8-10-34)19-14-33(3)23-21(19)22(26(27,28)29)20(13-31-23)32-24(35)18-6-4-5-16(11-18)12-30/h4-6,11,13-15,17H,7-10H2,1-3H3,(H,32,35)
InChI Key BIHPJIJLDNUDGH-UHFFFAOYSA-N
Bioactivity Comments
Inverse agonist 66 reduces IL-17 production by human Th17 cells with an IC50 of 9.5 nM in vitro, and by mouse Th17 cells with an IC50 of 32 nM [2]. At the gene transcription level, compound 66 inhibits production of mRNAs from a number of genes that are regulated by RORγt (IL-17A , IL-17F, IL-22, IL-26, and IL-23R). Oral bioavailability was optimised (to overcome its low aqueous solubility) by formulating the compound as a spray-dried dispersion. In vivo, compound 66 demonstrated a dose dependent inhibition of ear swelling in the mouse imiquimod-induced skin inflammation model, which was mirrored by a dose-dependent reduction in IL-17A protein in ear tissue.
Selectivity at nuclear hormone receptors
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Target Sp. Type Action Value Parameter Concentration range (M) Reference
RAR-related orphan receptor-γ Hs Agonist Inverse agonist 7.8 – 8.4 pIC50 - 1-2
pIC50 8.4 (IC50 4.1x10-9 M) [2]
Description: In a TR-FRET assay measuring agonist-induced inhibition of co-factor recruitment to RORC2 ligand binding domain.
pIC50 7.8 (IC50 1.66x10-8 M) [1]
Description: In a TR-FRET assay measuring agonist-=induced inhibition of co-activator peptide recruitment to RORC2 ligand binding domain.