6533b85ffe1ef96bd12c27d6
RESEARCH PRODUCT
Synthesis and Molecular Modeling Studies of Derivatives of a Highly Potent Peptidomimetic Vinyl Ester as Falcipain-2 Inhibitors
Silvana GrassoNicola MicaleGiovanni GraziosoFloriana BovaRoberta EttariMaria ZappalàTanja Schirmeistersubject
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 compounddescription
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 consequence, the potency of the inhibitors as well as their reversible or irreversible mode of inhibition.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-05-30 | ChemMedChem |