Search results for " FALCIPAIN-2"

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Optimization Strategy of Novel Peptide-Based Michael Acceptors for the Treatment of Human African Trypanosomiasis

2019

This paper describes an optimization strategy of the highly active vinyl ketone 3 which was recognized as a strong inhibitor of rhodesain of Trypanosoma brucei rhodesiense, endowed with a ksecond v...

Trypanosoma brucei rhodesienseStrong inhibitorKetoneStereochemistryProtein ConformationPeptide01 natural sciences03 medical and health sciencesStructure-Activity RelationshipSUBSTRATEDrug DiscoverymedicineHumansAfrican trypanosomiasisSulfonesBIOLOGICAL EVALUATION030304 developmental biologyWARHEADchemistry.chemical_classification0303 health sciencesMolecular StructureChemistryDERIVATIVESTrypanosoma brucei rhodesienseCYSTEINE PROTEASES RHODESAIN BIOLOGICAL EVALUATION CATHEPSIN-L INHIBITORS BRUCEI PEPTIDOMIMETICS FALCIPAIN-2 DERIVATIVES SUBSTRATE WARHEADBRUCEImedicine.diseaseFALCIPAIN-2Trypanocidal Agents0104 chemical sciences010404 medicinal & biomolecular chemistryCysteine EndopeptidasesTrypanosomiasis AfricanCYSTEINE PROTEASES RHODESAINCATHEPSIN-LMolecular MedicineINHIBITORSPEPTIDOMIMETICS
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Synthesis and Molecular Modeling Studies of Derivatives of a Highly Potent Peptidomimetic Vinyl Ester as Falcipain-2 Inhibitors

2012

Herein we report the synthesis of a set of constrained peptidomimetics endowed with an electrophilic vinyl ester warhead and structurally related to a previously identified lead compound, a potent and irreversible inhibitor of falcipain-2 (FP-2). FP-2 is the main hemoglobinase of the malaria parasite P. falciparum. The new compounds were evaluated for their inhibition against FP-2, and the results were rationalized on the basis of docking experiments. These studies underscore the pivotal role of both the ester function at the P1' site and the trifluoromethyl group of the P3 side chain in determining the correct orientation of the Michael acceptor warhead in the catalytic site, and as a cons…

peptidomimeticdMolecular modelPeptidomimeticStereochemistryPlasmodium falciparumVinyl esterBiochemistrycysteine proteasesfalcipain-2 inhibitorsAntimalarialschemistry.chemical_compoundCatalytic DomainDrug DiscoverySide chainHumansEnzyme InhibitorsMalaria FalciparumGeneral Pharmacology Toxicology and PharmaceuticsPharmacologyTrifluoromethylOrganic Chemistrydocking studiescysteine proteases; peptidomimeticd; docking studies; falcipain-2 inhibitorsMolecular Docking SimulationCysteine EndopeptidaseschemistryDocking (molecular)Michael reactionMolecular MedicinePeptidomimeticsLead compoundChemMedChem
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