Peptide–Boronic Acid Inhibitors of Flaviviral Proteases: Medicinal Chemistry and Structural Biology
作者:Christoph Nitsche、Linlin Zhang、Lena F. Weigel、Jonas Schilz、Dominik Graf、Ralf Bartenschlager、Rolf Hilgenfeld、Christian D. Klein
DOI:10.1021/acs.jmedchem.6b01021
日期:2017.1.12
A thousand-fold affinity gain is achieved by introduction of a C-terminal boronic acid moiety into dipeptidic inhibitors of the Zika, West Nile, and dengue virus proteases. The resulting compounds have Ki values in the two-digit nanomolar range, are not cytotoxic, and inhibit virus replication. Structure–activity relationships and a high resolution X-ray cocrystal structure with West Nile virus protease
Phenylalanine and Phenylglycine Analogues as Arginine Mimetics in Dengue Protease Inhibitors
作者:Lena F. Weigel、Christoph Nitsche、Dominik Graf、Ralf Bartenschlager、Christian D. Klein
DOI:10.1021/acs.jmedchem.5b00612
日期:2015.10.8
peptidic inhibitors of dengue virus protease that incorporate phenylalanine and phenylglycine derivatives as arginine-mimicking groups with modulated basicity. The most promising compounds were (4-amidino)-l-phenylalanine-containing inhibitors, which reached nanomolar affinities against dengue virus protease. The type and position of the substituents on the phenylglycine and phenylalanine side chains
M5 was selected as the hit compound from which the TM3 and TM4 series of compounds were further designed and synthesized. Based on the PPRE relative activities of TM3 and TM4, we discovered another new molecule, TM4h, which had the strongest PPRE relative activity (120.42% at 10 μg·mL−1). In addition, the concentration-dependent activity of the highly active compounds was determined by assaying their
preparation of natural products and complex biologically active compounds and the construction of selective drugs.' Our current research interest has focused on the reactions of 0-pivaloyl-D-glucopyranosylaldimines, and especially on their use in the stereoselective synthesis of a-amino acids. Opticallyactive a-amino acids may be obtained by the asymmetric Strecker reaction of imines. Kunz' group have reported
Elucidation of the Contribution of Active Site and Exosite Interactions to Affinity and Specificity of Peptidylic Serine Protease Inhibitors Using Non-Natural Arginine Analogs
作者:Masood Hosseini、Longguang Jiang、Hans Peter Sørensen、Jan K. Jensen、Anni Christensen、Sarah Fogh、Cai Yuan、Lisbeth M. Andersen、Mingdong Huang、Peter A. Andreasen、Knud J. Jensen
DOI:10.1124/mol.111.072280
日期:2011.10
activator, respectively. Both have an Arg as the P1 residue, inserting into the S1 pocket in the activesite of the enzymes, but their specificity depends to a large extent on interactions outside the enzymes' activesites, so-called exosite interactions. Here we describe upain-2 (CSWRGLENHAAC) and the synthesis of a number of upain-2 and mupain-1 variants in which the P1 Arg was substituted with novel