Search for dissertations about: "carbazole alkaloids"

Found 2 swedish dissertations containing the words carbazole alkaloids.

  2. 1. Synthetic studies of marine indole alkaloids and related systems

    Author : Ann-Louise Jonsson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Marine indole alkaloids; antifouling; synthesis; diketopiperazines; HWE-reaction; bis indole alkaloids; imidates; carbazole alkaloids;

    Abstract : This thesis is mainly focussed oil the synthesis of marine indole alkaloids and related systems, many of which display interesting biological activities. In the first part of this thesis we could establish and confirm the stucture of barettin and 8,9dihydrobarettin, isolated from the marine sponge Geodia baretti. READ MORE

  4. 2. Synthesis of indolocarbazoles, bisindoles and related sulfur containing systems

    Author : Tomasz Janosik; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Alkaloids; bisindoles; dithiins; indoles; indolocarbazoles; metallation; pentathiepins; polysulfides; tetrathiocins; thionation; X-ray crystallography.;

    Abstract : This thesis is focussed mainly on the synthesis and reactions of various indolocarbazoles, bisindoles and related sulfur containing systems, all possessing structural features present in many biologically active, natural or synthetic compounds. In the first part, synthetic routes towards the planar, pentacyclic ring systems of indolo[2,3-c]earbazole and indolo[3,2-a]carbazole are described. READ MORE