• Karakterisering av kommersielle omega-3 produkter og utvikling av en ny metode for separasjon av lipidklasser med fast-fase ekstraksjon 

      Ovesen, Marte Stokvik (Master thesis; Mastergradsoppgave, 2012-11-15)
      Kliniske studier viser at inntak av omega-3 fettsyrene EPA, DPA og DHA kan bidra til å forebygge hjerte- og karsykdommer, redusere inflammasjon, påvirke sentralnervesystemets funksjon positivt og bidra til en rekke andre helsegevinster. Som en konsekvens har markedet for kommersielle omega-3 produkter økt de siste tiårene. Det ble kjøpt inn 10 produkter til dette studiet. Produktene baserte seg på ...
    • MD simulations reveal how synthetic antimicrobial peptides interact with membrane models 

      Sarre, Birta Ravdna (Master thesis; Mastergradsoppgave, 2014-12-17)
      Since the discovery of antibiotics the extensive use in health care and agriculture has led to the development of resistant bacterial strains. Antimicrobial peptides (AMPs) exists in nature where they are believed to play an important role in the innate immune system in vertebrates. Due to their antibacterial properties and apparent ability to elicit very low bacterial resistance, researchers have ...
    • Microwave-assisted synthesis of heterocycles from aryldiazoacetates. 

      Kristoffersen, Tone (Master thesis; Mastergradsoppgave, 2017-11-15)
      A novel microwave-assisted method for generation of heterocycles have been explored. A range of 3,4 dihydroquinoxalin-2-ones have been prepared via an N-H insertion/cyclization cascade of dinucleophiles and aryldiazoacetates in moderate to good yields (12 - 80%). Reactions of aryldiazoacetates with o-phenylenediamine generated the best yields, while reactions with aliphatic and benzylic dinucleophiles ...
    • A new fluorous-tagged porphyrinoid 

      Larsen, Simon (Master thesis; Mastergradsoppgave, 2012-08-16)
      The field of corrole chemistry has flourished over the past decade. Simple and high-yielding procedures have made the corrole ligand readily available, and several procedures on how to functionalize and otherwise modify corroles and their metal complexes have been reported. During an attempt to synthesize corrole from a fluorous tagged aromatic aldehyde a new porphyrinoid has been isolated from ...
    • Novel Synthesis of Lipoxine A4 Analogues. Towards Allostric Modulators for Human Cannabinoid Receptor Type 1 

      Ismael, Aya (Master thesis; Mastergradsoppgave, 2015-11-15)
      The synthesis of the benzoid-based lipoxine A4 (LXA4) is the focus of this study specifically, the para substituted benzoid system. LXA4 is an endogenous agonist binding with high affinity to (ALXR) receptor that initiate it to display anti-inflammatory and antioxidant activities. Arachidonic acid is the cascade of LXA4 and its derivatives. These compounds belong to the biological active eicosanoids, ...
    • Nær-orthogonale eksperimenter i organiske syntesereaksjoner 

      Simonsen, Geir (Master thesis; Mastergradsoppgave, 2010-04)
      I avhandlingen prøver jeg å vise hvordan nær-othhogonale eksperimenter kan brukes i screeningforsøk
    • On the synthesis of a fimbrolide 

      Descomps, Alexandre Pierre (Master thesis; Mastergradsoppgave, 2008-06-30)
      The present work is on the total synthesis of a natural compound found in a mixture of secondary metabolite produced by an alga nearby the cost of Australia. The target molecule, the 4-bromo-3-butyl-5-(dibromomethylene)furan-2(5H)-one, has not previously been proposed. The synthetic route described in this thesis uses cheap and readily available starting materials and the target is reached after six ...
    • On the Synthesis of Breitfussins. Toward the total synthesis of Breitfussin A and analogues 

      Guttormsen, Yngve (Master thesis; Mastergradsoppgave, 2014-05)
      The Breitfussins are a series of closely related heterocyclic compounds originated from the marine organism Thelia Breitfussi. The core is a 5(indol-3-yl)-2-(pyrrol-2-yl)oxazole, which has not been observed prior to its isolation in 2007. The divergence of the Breitfussins lies in the halogenation pattern and methoxy substitution. Breitfussin A is of synthetic interest because of its novel structural ...
    • On the synthesis of pyrylium salts 

      Strømme, Jann H. (Master thesis; Mastergradsoppgave, 2009-05-19)
      Abstract The present work is on the synthesis of a pyrylium salt, 8-hydroxy-2,4-diphenyl-5,6,7,8-tetrahydrochromenylium tetrafluoroborate, a precursor for interesting transition metal ligands. Different routes are presented with the aim of making an affordable precursor for the variety of syntheses possible from these versatile pyrylium salts. New findings include a preparative non optimized ...
    • Potassium on potassium-graphite as reagent in the paal-knorr synthesis of 2,5-dimethylthiophene. 

      Okungbowa, Richard Nosa (Master thesis; Mastergradsoppgave, 2009-05-27)
      This thesis describes a new principle for the synthesis of thiophene from diketone. Thiophene is a five-membered heterocyclic aromatic compound containing one sulphur atom. The thiophene structure can be found in certain natural products and is also incorporated in several pharmacologically active compounds. The procedure described in the thesis uses the combination of graphite and metallic ...
    • The preparation of N-methyliminodiacetic acid protected alkynyl boronates 

      O'Donnell, Michael (Master thesis; Mastergradsoppgave, 2010-06)
      The purpose of this work is to document the attempted syntheses of N-methyliminoacetic acid (MIDA) -protected alkynyl boronates according to procedures and methodologies that have been successfully employed in the syntheses of MIDA-protected alkyl, alkenyl, aryl and heteroaryl boronates. The rationale for the development of this class of MIDA-protected boronates is presented, both in terms of some ...
    • Protein-protein binding affinities calculated using the LIE method 

      Andberg, Tor Arne Heim (Master thesis; Mastergradsoppgave, 2011-11-15)
      Absolute binding free energies for the third domain of the turkey ovomucoid inhibitor in complex with Streptomyces griseus proteinase B and porcine pancreatic elastase has been calculated using the linear interaction energy method.
    • Purification and characterization of a salt tolerant metallo-beta-lactamase from Aliivibrio salmonicida 

      Kristiansen, Anders (Master thesis; Mastergradsoppgave, 2011-07)
      Beta-lactamases are enzymes that inactivate beta-lactam antibiotics by hydrolyzing the amide bond that exists in the beta-lactam ring, disrupting the ring structure and make the antibiotics nonfunctional against bacteria. Metallo-beta-lactamases (MBLs) are a group of beta-lactamases which needs metal ions bound to its active site in order to function and are an important factor in many bacteria in ...
    • Reductions of barbituric acid based compounds 

      Kristoffersen, Stian (Master thesis; Mastergradsoppgave, 2013-05-15)
      Reductions of chalconoids with different para- substituents on the phenyl ring have been investigated in order to screen for kinase inhibitors with improved properties.
    • Rhenium- and technetium-oxo corroles: Toward corrole-based drugs and radiopharmaceuticals. 

      Einrem, Rune Finsås (Master thesis; Mastergradsoppgave, 2017-11-15)
      Corroles are an important class of contracted porphyrin analogues. Since quasi-one-pot syntheses of corroles were first reported in 1999, their coordination chemistry has been extensively studied. In the course of this thesis, the “periodic table of corroles” has been extended by two new elements, rhenium and technetium. Except from an accidental synthesis of an ReVO corrole via ring contraction ...
    • Ring closing reactions of barbituric acid derivatives 

      Kasiulis, Evaldas (Master thesis; Mastergradsoppgave, 2012-06-08)
      Ring closing reactions of barbituric acid derivatives
    • Site-directed mutagenesis of the metallo-β-lactamase VIM-7 from the opportunistic human pathogenic bacteria Pseudomonas aeruginosa 

      Skagseth, Susann (Master thesis; Mastergradsoppgave, 2012-05-15)
      The metallo-β-lactamases (MBLs) are enzymes with the ability to hydrolyse the β-lactam antibiotics. The worldwide emergence of the antibiotic resistant MBLs poses an increasing clinical threat. The VIM enzymes are a growing family of carbapenemases with a wide geographic distribution in Europe, South America and the USA. The VIM-7, the first VIM enzyme to be discovered in the USA, is the most divergent ...
    • Solvent effect with Multiwavelets 

      Monstad, Rune Sørland (Master thesis; Mastergradsoppgave, 2017-11-15)
      This thesis contains the inclusion of solvent effect in the computational chemistry program MRChem. Water in water systems are of importance.
    • Structural and functional studies of Ectoine Synthase from Chromohalobacter salexigens DSM 3043 and Marinobacter sp. CK1 

      Gundesø, Sigurd Eidem (Master thesis; Mastergradsoppgave, 2021-10-15)
      Ectoine is a compatible solute found in many microorganisms adapted to survive in saline and other extreme environments. Here, it aids microorganisms to counter osmotic stress and protect their enzymes. Ectoine exhibit many interesting properties that is potentially commercially exploitable, and it is currently produced and found in several products on the market. While ectoine is produced by ...
    • Structure activity investigations of XTH inhibitors 

      Kosonen, Juho Aleksi (Master thesis; Mastergradsoppgave, 2019-05-15)
      XTHs (xylogclucan endotransglucosylase/hydrolases) are a group of plant enzymes that regulate xyloglucan crosslinking in cell walls and play an essential role in regulation of plant growth. It is thought that XTHs play an integral role in the way the parasitic vine plant Cuscuta is able to penetrate host plant cell walls. Parasitic higher plants are a formidable threat to agricultural production ...