0000000001303976

AUTHOR

Veronika Ehmke

showing 4 related works from this author

Tuning and Predicting Biological Affinity: Aryl Nitriles as Cysteine Protease Inhibitors

2012

A series of aryl nitrile-based ligands were prepared to investigate the effect of their electrophilicity on the affinity against the cysteine proteases rhodesain and human cathepsin L. Density functional theory calculations provided relative reactivities of the nitriles, enabling prediction of their biological affinity and cytotoxicity and a clear structure-activity relationship.

Models MolecularProteasesNitrileCathepsin LTrypanosoma brucei bruceiCysteine Proteinase InhibitorsBiochemistryCysteine Proteinase InhibitorsCathepsin Lchemistry.chemical_compoundCatalytic DomainNitrilesHumansOrganic chemistryPhysical and Theoretical ChemistryCathepsinbiologyArylOrganic ChemistryCombinatorial chemistryCysteine proteaseCysteine EndopeptidaseschemistryDrug Designbiology.proteinCysteineOrg. Biomol. Chem.
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Optimization of Triazine Nitriles as Rhodesain Inhibitors: Structure-Activity Relationships, Bioisosteric Imidazopyridine Nitriles, and X-ray Crystal…

2013

The cysteine protease rhodesain of Trypanosoma brucei parasites causing African sleeping sickness has emerged as a target for the development of new drug candidates. Based on a triazine nitrile moiety as electrophilic headgroup, optimization studies on the substituents for the S1, S2, and S3 pockets of the enzyme were performed using structure-based design and resulted in inhibitors with inhibition constants in the single-digit nanomolar range. Comprehensive structure-activity relationships clarified the binding preferences of the individual pockets of the active site. The S1 pocket tolerates various substituents with a preference for flexible and basic side chains. Variation of the S2 subs…

Models MolecularImidazopyridineMolecular modelNitrilePyridinesStereochemistryCathepsin LTrypanosoma brucei bruceiSubstituentCysteine Proteinase InhibitorsCrystallography X-RayLigandsBiochemistryStructure-Activity Relationshipchemistry.chemical_compoundParasitic Sensitivity TestsNitrilesDrug DiscoveryHumansMoietyGeneral Pharmacology Toxicology and PharmaceuticsTriazinePharmacologyDose-Response Relationship DrugMolecular StructurebiologyTriazinesChemistryLigandOrganic ChemistryImidazolesActive siteCysteine Endopeptidasesbiology.proteinMolecular MedicineChemMedChem
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CCDC 916055: Experimental Crystal Structure Determination

2013

Related Article: Veronika Ehmke, Edwin Winkler, David W. Banner, Wolfgang Haap, W. Bernd Schweizer, Matthias Rottmann, Marcel Kaiser, Céline Freymond, Tanja Schirmeister, François Diederich|2013|ChemMedChem|8|967|doi:10.1002/cmdc.201300112

Space GroupCrystallography4-(3-Methyl-1H-pyrazol-1-yl)benzaldehydeCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 916056: Experimental Crystal Structure Determination

2013

Related Article: Veronika Ehmke, Edwin Winkler, David W. Banner, Wolfgang Haap, W. Bernd Schweizer, Matthias Rottmann, Marcel Kaiser, Céline Freymond, Tanja Schirmeister, François Diederich|2013|ChemMedChem|8|967|doi:10.1002/cmdc.201300112

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters46-Dichloro-NN-dicyclohexyl-135-triazin-2-amineExperimental 3D Coordinates
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