Browsing Fakultät für Chemie (inkl. GAUSS) by Advisor "Tietze, Lutz Prof. Dr. Dr. h.c."
Now showing items 1-14 of 14
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Untersuchungen zur enantioselektiven Totalsynthese von Parnafungin C
(2016-10-10)Within this thesis, two fragments of the natural product Parnafungin C, a highly functionalized chiral chromane with the correct absolute and relative configuration of all stereogenic centers as well as a biaryl system ... -
Zugang zu Agrar- & Pharmawirkstoffen durch organische Synthese
(2015-07-30)This thesis contains the design of new spinosyn analogues via two subsequent heck reactions as well as the modification of a beta-selective glycoslylation method and the synthesis of six new potential Hsp47 inhibitors based ... -
Domino Reactions for the Syntheses of Chiral Chromanes ‒ Enantioselective Total Syntheses of (‒)-Diversonol, (‒)-Blennolide C, (‒)-Gonytolide C and Formal Synthesis of Siccanin
(2015-06-15)The general objective of this thesis is to demonstrate the synthetic utility of the domino concept in the complex setting of natural product synthesis. Key step is a palladium-catalyzed domino Wacker/carbonylation/methoxylation ... -
Untersuchungen zur Synthese fluoreszenzaktiver aromatischer Polyzyklen durch Palladium-katalysierte Domino-C‒H-Aktivierungen
(2014-11-18)Fluorescent dyes were synthesized via novel fourfold Palladium-catalyzed domino reactions consisting of a Sonogashira reaction, two carbopalladations and a C-H-activation in one domino process. -
Synthese und biologische Evaluation neuartiger Duocarmycin-Analoga für eine selektive Krebstherapie
(2013-06-07)To date most anticancer agents interact with the cell cycle and therefore traditionally damage only cells with high proliferation rates. The usually insufficient differentiation between normal and malignant cells results ... -
Synthese und biologische Evaluierung neuartiger Acronycin-Duocarmycin-Hybride
(2012-02-17)A new hybrid comprising the structure of natural products acronycine and duocarmycin was synthesized and biologically evaluated. -
Synthese und biologische Evaluierung von fluorezenzmarkierten Duocarmycin-Analoga
(2012-02-16)The chemotherapy of malign tumours is severely restricted due to severe side effects of the available anticancer agents. A novel approach to overcome these limitations is the Antibody ... -
Palladium(II)-katalysierte Domino-Reaktionen zur enantioselektiven Synthese von Confluentin, Daurichromen- und Rhododaurichromansäure Untersuchungen zur Synthese von Aglaroxin A
(2011-04-28)This thesis is about Palladium(II) catalysed Domino Reactions for the enantioselective Synthesis of Confluentin, Daurichromenic and Rhododaurichromanic acid. These substances were isolated ... -
Synthese, biologische Evaluation und Untersuchung des Wirkmechanismus neuartiger Duocarmycin-Analoga für eine selektive Krebstherapie
(2009-03-24)Despite considerable efforts towards the development of efficient cancer therapies, most anti-cancer agents applied so far in the clinic cause severe side effects because their cytotoxic ... -
Totalsynthese von Camptothecin
(2008-10-22)The pentacyclic alkaloid camptothecin exhibits pronounced cytotoxicity. Within the framework of structure-property-relationship studies irinotecan (camptosar®) and topotecan (hycamtin®) as ... -
Untersuchungen zur Synthese von Yohimban- und Campthoteca-Alkaloiden durch Domino-Knoevenagel-Hetero-Diels-Alder-Reaktion
(2007-11-01)In this context, the domino reactions proved to be an excellent tool to access complex molecules from simple substrates in environmentally and economically sustainable way. This ... -
Synthese von Tetragastrin-CC-1065-Konjugaten und verwandten Verbindungen für eine selektive Krebstherapie
(2007-06-19)The antibiotic (+)-CC-1065 was first isolated from culture of Streptomyces zelensis in 1978. It showed in both in vitro and in vivo performed screenings very high cell toxicity. The study ... -
Towards a Total Synthesis of Mensacarcin
(2004-12-09)The work in this thesis has been concerned with attempts to develop concise synthetic routes to the natural product mensacarcin, which is a novel polyfunctionalised hexahydroanthracene ... -
Intramolekulare En- und Allylsilancyclisierungen von Alkyliden- und Benzyliden-1,3-dicarbonylverbindungen
(2001-06-20)This thesis describes the synthetic potential of alkylidene- and benzylidene-1,3-dicarbonylcompounds in intramolecular reactions. Chiral and prochiral compounds led in intramolecular ene-reactions to 1,2-disubstituted ...