Viser treff 601-620 av 623

    • 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 ...
    • Synthesis of 5-,6-, and 7-membered heterocycles from barbituric acid derivatives 

      Guyader, David (Master thesis; Mastergradsoppgave, 2011-06-10)
      SUMMARY A new procedure has been developed for the synthesis of barbituric acid derivatives. The reactions were performed under solvent free conditions without any catalyst. Employing this synthetic route, a large number of chalconoids and 5-,6-, and 7-membered heterocycles have been successfully synthesized in a very short time. The chalconoids have been synthesized from a barbituric derivative ...
    • 7-Azathieno[2,3-c] cinnoline 

      Hansen, Lars Kr; Stockmann, V; Fiksdahl, A (Journal article; Tidsskriftartikkel; Peer reviewed, 2007)
    • 2-Chloro-2-phenylethylammonium chloride 

      Lejon, Tore Sigvard; Ingebrigtsen, Truls Erik; Hansen, Lars Kr (Journal article; Tidsskriftartikkel; Peer reviewed, 2006)
    • 4-Hydroxybenzamide 

      Hansen, Lars Kr; Perlovich, German; Bauer-Brandl, Annette (Journal article; Tidsskriftartikkel; Peer reviewed, 2007)
    • 7-azathieno[3,2-c]cinnoline 

      Stockmann, V; Hansen, Lars Kr; Fiksdahl, A (Journal article; Tidsskriftartikkel; Peer reviewed, 2007)
    • Methyl 5-nitro-2-(phenylamino)pyridine-4-carboxylate 

      Hansen, Lars Kr; Tjosas, F; Tjosås, Freddy; Fiksdahl, A (Journal article; Tidsskriftartikkel; Peer reviewed, 2006)
    • Pyridine-3-carbaldehyde 2-pyridylhydrazone 

      Schaper, KJ; Hansen, Lars Kr; Perlovich, German; Bauer-Brandl, Annette (Journal article; Tidsskriftartikkel; Peer reviewed, 2007)
    • Redetermination of p-ethoxyacetanilide (phenacetin) 

      Hansen, Lars Kr; Perlovich, German; Bauer-Brandl, Annette D (Journal article; Tidsskriftartikkel; Peer reviewed, 2006)
    • 3-(Acetylamino)benzoic acid 

      Hansen, Lars Kr; Perlovich, German; Bauer-Brandl, Annette (Journal article; Tidsskriftartikkel; Peer reviewed, 2007)
    • Redetermination and H-atom refinement of (S)-(+)-ibuprofen. Corrigendum 

      Hansen, Lars Kr; Perlovich, German; Bauer-Brandl, Annette (Journal article; Tidsskriftartikkel; Peer reviewed, 2006)
      [Erratum to document cited in CA140:010932]
    • N-(3-hydroxyphenyl)acetamide 

      Hansen, Lars Kr; Perlovich, German; Bauer-Brandl, Annette (Journal article; Tidsskriftartikkel; Peer reviewed, 2006)
    • Redetermination of 3-hydroxybenzamide 

      Hansen, Lars Kr; Perlovich, German; Bauer-Brandl, Annette (Journal article; Tidsskriftartikkel; Peer reviewed, 2007)
    • Antibiotikaresistent - hva nå? 

      Leiros, Hanna-Kirsti S. (Conference object; Konferansebidrag, 2010-09-02)
    • 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 ...
    • Flexible membrane active antimicrobial tripeptides with stability towards chymotryptic degradation 

      Isaksen, Geir Villy (Master thesis; Mastergradsoppgave, 2010-06-14)
      In recent years antimicrobial peptides have gained a lot of attention due to their potential as a new generation of antibiotics combating the growing problem of antibiotic resistance. It is believed that the amphipathic structure of cationic peptides is a key feature for antimicrobial activity, and that this enables them to interact with the bacterial cell membrane. The conformational space of a ...
    • 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
    • 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 ...
    • 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 ...
    • 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 ...