1Z6E

Factor XA in complex with the inhibitor 1-(3'-amino-1,2-benzisoxazol-5'-yl)-n-(4-(2'-((dimethylamino)methyl)-1h-imidazol-1-yl)-2-fluorophenyl)-3-(trifluoromethyl)-1h-pyrazole-5-carboxamide (razaxaban; DPC906; BMS-561389)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.221 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Discovery of 1-(3'-aminobenzisoxazol-5'-yl)-3-trifluoromethyl-N-[2-fluoro-4-[(2'-dimethylaminomethyl)imidazol-1-yl]phenyl]-1H-pyrazole-5-carboxyamide hydrochloride (razaxaban), a highly potent, selective, and orally bioavailable factor Xa inhibitor.

Quan, M.L.Lam, P.Y.S.Han, Q.Pinto, D.J.P.He, M.Y.Li, R.Ellis, C.D.Clark, C.G.Teleha, C.A.Sun, J.-H.Alexander, R.S.Bai, S.Luettgen, J.M.Knabb, R.M.Wong, P.C.Wexler, R.R.

(2005) J Med Chem 48: 1729-1744

  • DOI: https://doi.org/10.1021/jm0497949
  • Primary Citation of Related Structures:  
    1Z6E

  • PubMed Abstract: 

    Modification of a series of pyrazole factor Xa inhibitors to incorporate an aminobenzisoxazole as the P(1) ligand resulted in compounds with improved selectivity for factor Xa relative to trypsin and plasma kallikrein. Further optimization of the P(4) moiety led to compounds with enhanced permeability and reduced protein binding. The SAR and pharmacokinetic profile of this series of compounds is described herein. These efforts culminated in 1-(3'-aminobenzisoxazol-5'-yl)-3-trifluoromethyl-N-[2-fluoro-4-[(2'-dimethylaminomethyl)imidazol-1-yl]phenyl]-1H-pyrazole-5-carboxyamide (11d), a potent, selective, and orally bioavailable inhibitor of factor Xa. On the basis of its excellent in vitro potency and selectivity profile, high free fraction in human plasma, good oral bioavailability, and in vivo efficacy in antithrombotic models, the HCl salt of this compound was selected for clinical development as razaxaban (DPC 906, BMS-561389).


  • Organizational Affiliation

    Discovery Chemistry, Pharmaceutical Research Institute, Bristol-Myers Squibb Co., P.O. Box 5400, Princeton, New Jersey 08543-5400, USA. mimi.quan@bms.com


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Coagulation factor X234Homo sapiensMutation(s): 0 
EC: 3.4.21.6
UniProt & NIH Common Fund Data Resources
Find proteins for P00742 (Homo sapiens)
Explore P00742 
Go to UniProtKB:  P00742
PHAROS:  P00742
GTEx:  ENSG00000126218 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00742
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Coagulation factor XB [auth L]52Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P00742 (Homo sapiens)
Explore P00742 
Go to UniProtKB:  P00742
PHAROS:  P00742
GTEx:  ENSG00000126218 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00742
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
IK8
Query on IK8

Download Ideal Coordinates CCD File 
C [auth A]1-(3-AMINO-1,2-BENZISOXAZOL-5-YL)-N-(4-{2-[(DIMETHYLAMINO)METHYL]-1H-IMIDAZOL-1-YL}-2-FLUOROPHENYL)-3-(TRIFLUOROMETHYL) -1H-PYRAZOLE-5-CARBOXAMIDE
C24 H20 F4 N8 O2
OFJRNBWSFXEHSA-UHFFFAOYSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
IK8 PDBBind:  1Z6E Ki: 0.19 (nM) from 1 assay(s)
BindingDB:  1Z6E Ki: min: 0.19, max: 1.6 (nM) from 2 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.221 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.1α = 90
b = 71.7β = 90
c = 78.3γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
EPMRphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
CNXrefinement

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-03-28
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.3: 2023-08-23
    Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary