6VSW

Optimization and biological evaluation of thiazole-bis-amide inverse agonists of RORgt


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.190 

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Ligand Structure Quality Assessment 


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Literature

Optimization and biological evaluation of thiazole-bis-amide inverse agonists of ROR gamma t.

Gege, C.Albers, M.Kinzel, O.Kleymann, G.Schluter, T.Steeneck, C.Hoffmann, T.Xue, X.Cummings, M.D.Spurlino, J.Milligan, C.Fourie, A.M.Edwards, J.P.Leonard, K.Coe, K.Scott, B.Pippel, D.Goldberg, S.D.

(2020) Bioorg Med Chem Lett 30: 127205-127205

  • DOI: 10.1016/j.bmcl.2020.127205
  • Primary Citation of Related Structures:  
    6VSW

  • PubMed Abstract: 
  • The nuclear receptor retinoic acid receptor-related orphan receptor gamma t (RORγt) is a transcription factor that drives Th17 cell differentiation and IL-17 production in both innate and adaptive immune cells. The IL-23/IL-17 pathway is implicated in major autoimmune and inflammatory diseases ...

    The nuclear receptor retinoic acid receptor-related orphan receptor gamma t (RORγt) is a transcription factor that drives Th17 cell differentiation and IL-17 production in both innate and adaptive immune cells. The IL-23/IL-17 pathway is implicated in major autoimmune and inflammatory diseases. RORγt lies at the core of this pathway and represents an attractive opportunity for intervention with small molecule therapeutics. Despite diverse chemical series having been reported, combining high potency and nuclear receptor selectivity with good physicochemical properties remains a challenging endeavor in the field of RORγt drug discovery. We recently described the discovery and evaluation of a new class of potent and selective RORγt inverse agonists based on a thiazole scaffold. Herein we describe the successful optimization of this class by incorporation of an additional amide moiety at the 4-position of the thiazole core. In several optimization cycles, we have reduced human PXR activation, improved solubility, and increased potency while maintaining nuclear receptor selectivity. X-ray crystallographic analysis of compound 1g bound in the sterol binding site of the ligand binding domain of RORγt was largely consistent with an earlier structure, guiding further insight into the molecular mechanism for RORγt inhibition with this series. Compound 1g is orally bioavailable, potent in a human whole blood assay and proved to be efficacious in an ex-vivo IL-17A assay, and was selected for preclinical evaluation.


    Organizational Affiliation

    Janssen Research and Development, LLC, San Diego, CA 92121, USA. Electronic address: sgoldbe1@its.jnj.com.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RAR-related orphan receptor CA, B232Homo sapiensMutation(s): 0 
Gene Names: RORCNR1F3RORGRZRG
UniProt & NIH Common Fund Data Resources
Find proteins for P51449 (Homo sapiens)
Explore P51449 
Go to UniProtKB:  P51449
PHAROS:  P51449
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
RG7 (Subject of Investigation/LOI)
Query on RG7

Download Ideal Coordinates CCD File 
C [auth A], D [auth B]5-(2,3-dichloro-4-{[(2S)-1,1,1-trifluoropropan-2-yl]sulfamoyl}phenyl)-4-(4-fluoropiperidine-1-carbonyl)-N-(2-hydroxy-2-methylpropyl)-1,3-thiazole-2-carboxamide
C23 H26 Cl2 F4 N4 O5 S2
VZRCTKJCGGBKBW-NSHDSACASA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.190 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 100.261α = 90
b = 100.261β = 90
c = 124.585γ = 120
Software Package:
Software NamePurpose
HKL-2000data reduction
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-05-13
    Type: Initial release