5HCV

Identification of Spirooxindole and Dibenzoxazepine Motifs as Potent Mineralocorticoid Receptor Antagonists

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.170 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Identification of spirooxindole and dibenzoxazepine motifs as potent mineralocorticoid receptor antagonists.

Lotesta, S.D., Marcus, A.P., Zheng, Y., Leftheris, K., Noto, P.B., Meng, S., Kandpal, G., Chen, G., Zhou, J., McKeever, B., Bukhtiyarov, Y., Zhao, Y., Lala, D.S., Singh, S.B., McGeehan, G.M.

(2016) Bioorg.Med.Chem. 24: 1384-1391

  • DOI: 10.1016/j.bmc.2016.02.014

  • PubMed Abstract: 

    • Mineralocorticoid receptor (MR) antagonists continue to be a prevalent area of research in the pharmaceutical industry. Herein we report the discovery of various spirooxindole and dibenzoxazepine constructs as potent MR antagonists. SAR analysis of o ...

    Mineralocorticoid receptor (MR) antagonists continue to be a prevalent area of research in the pharmaceutical industry. Herein we report the discovery of various spirooxindole and dibenzoxazepine constructs as potent MR antagonists. SAR analysis of our spirooxindole hit led to highly potent compounds containing polar solubilizing groups, which interact with the helix-11 region of the MR ligand binding domain (LBD). Various dibenzoxazepine moieties were also prepared in an effort to replace a known dibenzoxepane system which interacts with the hydrophobic region of the MR LBD. In addition, an X-ray crystal structure was obtained from a highly potent compound which was shown to exhibit both partial agonist and antagonist modes of action against MR.

    Organizational Affiliation: 

    Vitae Pharmaceuticals, 502 West Office Center Drive, Fort Washington, PA 19034, United States. Electronic address: slotesta@vitaerx.com.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mineralocorticoid receptor
A, B, C
257Homo sapiensMutation(s): 1 
Gene Names: NR3C2 (MCR, MLR)
Find proteins for P08235 (Homo sapiens)
Go to Gene View: NR3C2
Go to UniProtKB:  P08235
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL
Download SDF File 
Download CCD File 
B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
60R
Query on 60R
Download SDF File 
Download CCD File 
A, B, C
6-[(~{E})-(3-fluoranyl-6~{H}-benzo[c][1]benzoxepin-11-ylidene)methyl]-4~{H}-1,4-benzoxazin-3-one
C23 H16 F N O3
IGQHIUNZKLGBMZ-DJKKODMXSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
60RKi: 2 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.170 
  • Space Group: P 31
Unit Cell:
Length (Å)Angle (°)
a = 121.501α = 90.00
b = 121.501β = 90.00
c = 44.406γ = 120.00
Software Package:
Software NamePurpose
MOLREPphasing
SCALEPACKdata scaling
HKL-2000data reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-03-09
    Type: Initial release
  • Version 1.1: 2017-08-09
    Type: Derived calculations