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Visar resultat 1 - 5 av 6 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Nitration of Oxo-pyramidines and Oxo-imidazoles

   Författare :Abraham Langlet; Christina Moberg; Jan Bakke; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; explosives; gem-Dinitro compounds; Dinitromethane; Nitroform; Organic chemistry; Organisk kemi;

   Sammanfattning : This thesis is mainly focused on the reactions of oxo-pyrimidines and oxo-imidazoles with nitric acid in sulfuric acid and properties of the gem-dinitro products formed in this process. Low temperature nitrations of 2-methylimidazoles produced – in addition to the known 2-methyl-5(4)-nitroimidazole – 2-(dinitromethylene)-5,5-dinitro-4-imidazolidinone and parabanic acid. LÄS MER

3. 2. Discovery of Small Peptides and Peptidomimetics Targeting the Substance P 1-7 Binding Site : Focus on Design, Synthesis, Structure-Activity Relationships and Drug-Like Properties

   Författare :Rebecca Fransson; Anja Sandström; John S Svendsen; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; substance P 1-7; peptidomimetics; structure-activity relationship; drug-like properties; phenylalanine; imidazole; MAP aryl amides; carbonylation; Pharmaceutical chemistry; Farmaceutisk kemi; Medicinal Chemistry; Läkemedelskemi;

   Sammanfattning : Biologically active peptides are important for many physiological functions in the human body and therefore serve as interesting starting points in drug discovery processes. In this work the neuropeptide substance P 1–7 (SP1–7, H-Arg-Pro-Lys-Pro-Gln-Gln-Phe-OH), which has been demonstrated to reduce neuropathic pain and attenuate opioid withdrawal symptoms in animal models, has been addressed in a medicinal chemistry program with the overall aim of transforming this bioactive peptide into more drug-like compounds. LÄS MER

4. 3. Molecular basis for the anti-inflammatory properties of chlomethiazole

   Författare :Anastasia Simi; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Stroke; neuroprotection; p38 MAP kinase; chlomethiazole; interleukin-1; c-fos; inflammation; glia; lipopolysaccharide; molecular mechanisms; ischaemia;

   Sammanfattning : Chlomethiazole (CMZ) exerts neuroprotective effects in animal models of stroke, and its clinical efficacy is currently evaluated in acute stroke patients. CMZ also protects the liver from alcohol- induced oxidative damage by inhibiting the cytochrome P450 2E1 (CYP2E1), as well as inflammation associated with alcohol liver disease (ALD) by inhibiting cytokine expression. LÄS MER

5. 4. Development of metal complexes for water oxidation

   Författare :Bao-Lin Lee; Sascha Tiede; Stockholms universitet; []
   Nyckelord :;

   Sammanfattning : In the course of developing a water oxidation catalyst, five metal complexes have been synthesised, characterised and studied for catalytic activity. Three of them are dinuclear complexes (Ru, Co and Cu) of 2,6-bis[(2-hydroxybenzyl)-(2-pyridylmethyl)aminomethyl]-4-methylphenol (H3bbpmp). LÄS MER

7. 5. Synthesis of Nitrogen Heterocycles via 1,3-Dipolar Cycloadditions - Method Development and Applications

   Författare :Johan Johansson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 2D NOESY; alkyne; 3-dipolar cycloaddition; azomethine ylide; 1; CNTs; azide; sequential one-pot; SEM EDS; microwave heating; RuAAC; CuAAC;

   Sammanfattning : Because of the diverse properties displayed by nitrogen heterocycles, they are one of the most commonly used structural elements in drug discovery. Due to this variation in properties, however, the chemistry and synthetic pathway to each heterocycle is unique. LÄS MER