Avancerad sökning

Visar resultat 1 - 5 av 131 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Design and Synthesis of Hepatitis C Virus NS3 Protease Inhibitors : Targeting Different Genotypes and Drug-Resistant Variants

   Författare :Anna Karin Belfrage; Anja Sandström; Ulf Ellervik; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; hepatitis C virus; HCV; NS3 protease inhibitors; structure-activity relationship; 2 1H -pyrazinone; quinazoline; resistance; Pd catalysis; Medicinal Chemistry; Läkemedelskemi; Farmaceutisk vetenskap; Pharmaceutical Science;

   Sammanfattning : Since the first approved hepatitis C virus (HCV) NS3 protease inhibitors in 2011, numerous direct acting antivirals (DAAs) have reached late stages of clinical trials. Today, several combination therapies, based on different DAAs, with or without the need of pegylated interferon-α injection, are available for chronic HCV infections. LÄS MER

3. 2. Exploring Palladium-Mediated 11C/12C-Carbonylation Reactions : PET Tracer Development Targeting the Vesicular Acetylcholine Transporter

   Författare :Sara Roslin; Mats Larhed; Gunnar Antoni; Jonas Eriksson; Luke Odell; Victor Pike; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Carbonylation; palladium; carbon-11; radiochemistry; positron emission tomography; vesicular acetylcholine transporter; vesamicol; alkyl halide; oxidative carbonylation; acylamidine; oxadiazole; heterocycle; Farmaceutisk vetenskap; Pharmaceutical Science;

   Sammanfattning : The work presented herein describes the utilization and exploration of palladium-mediated incorporations of carbon monoxide and/or [11C]carbon monoxide into compounds and structural motifs with biological relevance.The first part of the thesis describes the design, synthesis and 11C-labeling of prospective PET tracers for the vesicular acetylcholine transporter (VAChT), a target affected in several neurodegenerative diseases. LÄS MER

4. 3. Chiral Separation of Amines by Non-Aqueous Capillary Electrophoresis using Low Molecular Weight Selectors

   Författare :Ylva Hedeland; Curt Pettersson; Ulf Bondesson; Lars Blomberg; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Pharmaceutical chemistry; Chiral Separation; Non-Aqueous Capillary Electrophoresis; Enantioresolution; Electro-osmotic Flow; Pharmaceuticals; Enantiomeric Amines; Low Molecular Weight Selector; Farmaceutisk kemi; Kemi med inriktning mot analytisk kemi; Chemistry with specialization in Analytical Chemistry; Analytical Pharmaceutical Chemistry; Analytisk farmaceutisk kemi;

   Sammanfattning : Three chiral selectors (diketogulonic acid, benzoxycarbonylglycylproline and ketopinic acid) have been introduced for enantioseparation of pharmacologically active amines in non-aqueous capillary electrophoresis. The use of organic solvents, instead of aqueous buffers in the background electrolyte facilitated ion-pair formation between the analytes and the chiral selectors. LÄS MER

5. 4. Capillary electrophoresis mass spectrometry applied to structural proteomics and small molecule analysis

   Författare :Jordan Aerts; Erik T. Jansson; Per E. Andrén; Petr Man; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Capillary Electrophoresis Mass Spectrometry; Hydrogen Deuterium Exchange Mass Spectrometry; Enantioselective Separations; Drugs of Abuse; Analytical Chemistry; Analytisk kemi; Analytisk farmaceutisk kemi; Analytical Pharmaceutical Chemistry; Kemi med inriktning mot analytisk kemi; Chemistry with specialization in Analytical Chemistry; Biology with specialization in Structural Biology; Biologi med inriktning mot strukturbiologi;

   Sammanfattning : Capillary electrophoresis with mass spectrometric (CE–MS) detection offers a separation method without equal in terms of flexibility, utility, and cost efficiency. Here we demonstrate precisely this through the application of several laboratory-built CE–MS instruments for the separation of brain metabolites in non-primates, enantioselective separations of synthetic anesthetic metabolites in fractionated pony urine, application in structural proteomics workflows, and identification of exogenous alkaloid biotransformationproducts in human cerebrospinal fluid (CSF). LÄS MER

7. 5. Analytical Quality by Design Method Development for Vaccine Characterization

   Författare :Lars Geurink; Catharina Sänger van de Griend; Mikael Hedeland; Martijn Schenning; Iulia Oita; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; viral vaccines; adenovirus; influenza; polio; COVID; corona; capillary electrophoresis; analytical quality by design; analytical method development; CGE; icIEF; CZE; crude cell suspension analysis; in-process sample analysis; quality control testing; biopharmaceutical characterization; Analytisk farmaceutisk kemi; Analytical Pharmaceutical Chemistry;

   Sammanfattning : Vaccines that are safe, efficacious, and can be rapidly developed are needed to prevent and to react to emerging global infectious disease threats such as influenza, Polio, and Coronavirus diseases. Fast and reliable analytical methods are required without delay to support vaccine process and product development, characterization, and quality control testing. LÄS MER