Search for dissertations about: "peptidomimetics"

Showing result 16 - 20 of 27 swedish dissertations containing the word peptidomimetics.

  2. 16. Metallocene based peptidomimetics and chiral catalysts

    Author : Suzana Maricic; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Organisk kemi; asymmetric catalysis.; metallocene based amino alcohols; one-pot macrocyclisation; cyclic peptides; Organometallic substance P and Leu 5 -enkephalin; conformational analysis;

    Abstract : Several optically active organometallic Phe-AAn-Phe peptidomimetics and macrocyclic Phe-(Phe)n peptides have been synthesized by either intra- or intermolecular peptide bond formation of the corresponding bis(amino acid) derivatives. The key bis(amino acid) derivatives were available from an improved multi-step synthetic route, utilising Horner-Wadswort-Emmons olefination of organometallic aldehydes with phosphonylglycine reagents, enantioselective hydrogenation of didehydro amino acids and classical solution and/or solid phase peptide synthesis methodology. READ MORE

  4. 17. Design and synthesis of -turn peptidomimetics : Applications to angiotensin II

    Author : Susanna Lindman; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical chemistry; peptide synthesis; turn mimetics; molecular modelling; receptor binding affinity; Farmaceutisk kemi; Pharmaceutical chemistry; Farmaceutisk kemi; Organic Pharmaceutical Chemistry; organisk farmaceutisk kemi;

    Abstract : This study addresses the issue of how to convert peptides into drug-like non-peptides while retaining the biological activity at peptide receptors. Angiotensin II (Asp-Arg-Val-Tyr-Ile-His-Pro-Phe, Ang II) was used as a model peptide. Small bioactive peptides are in most cases conformationally flexible molecules. READ MORE

  5. 18. Peptidomimetics based on ring-fused 2-pyridones : probing pilicide function in uropathogenic E. coli and identification of Aβ-peptide aggregation inhibitors

    Author : Veronica Åberg; Fredrik Almqvist; Jan Kihlberg; Morten Grötli; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; 2-pyridone; peptidomimetic; antibacterial; pili; Escherichia coli; virulence; amyloid; Alzheimer’s.; Organic chemistry; Organisk kemi;

    Abstract : This thesis describes the synthesis and biological evaluation of highly substituted, ring-fused 2-pyridones. The utility of the bicyclic 2-pyridones to gain fundamental insights into the disease processes of bacterial infections and Alzheimer’s disease has been investigated. READ MORE

  6. 19. Design, Synthesis and Biological Evaluation of Selective Nonpeptide AT2 Receptor Agonists and Antagonists

    Author : Charlotta Wallinder; Anders Hallberg; Mathias Alterman; Anders Karlén; Elizabeth E. Sugg; Uppsala universitet; []
    Keywords : AT2 receptor agonist; AT2 receptor antagonist; Ang II peptidomimetics;

    Abstract : The G protein-coupled receptors (GPCRs) are important targets in drug discovery. In several cases, the endogenous ligands that activate the GPCRs of pharmaceutical interest are peptides. READ MORE

  7. 20. Design and Synthesis of Acyclic and Macrocyclic Peptidomimetics as Inhibitors of the Hepatitis C Virus NS3 Protease

    Author : Anna Lampa; Anja Sandström; Youla Tsantrizos; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; hepatitis C virus; HCV; NS3 protease inhibitor; structure-activity relationship; phenylglycine; ring-closing metathesis; Medicinal Chemistry; Läkemedelskemi;

    Abstract : Hepatitis C is a blood-borne disease affecting 130-170 million people worldwide. The causative agent, hepatitis C virus (HCV), infects the liver and is the major reason for chronic liver disease worldwide. The HCV NS3 protease, a key enzyme in the virus replication cycle, has been confirmed to be an important target for drug development. READ MORE