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Bifunctional ligands for copper(II) complexation
Paúrová, Monika ; Kotek, Jan (advisor) ; Lorenc, Miroslav (referee)
In this Bachelor thesis, cyclam bifunctional derivatives bearing pendant phosphonate groups [4-methyl-11-p-carboxybenzyl-1,4,8,11-tetraazacyclotetradecane-1,8-bis(methylenephosphonic acid) and 4-methyl-11-p-nitrobenzyl-1,4,8,11-tetraazacyclotetradecane-1,8-bis(methylenephosphonic acid)], were prepared and studied as a potential ligands for complexation of divalent copper ion. These ligands can to be used as macromolecular carriers. Vytvořeno pomocí Software602 Print2PDF 8. Tuto řádku odstraníte zakoupením licence a aktivací na http://www.software602.cz/
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Bifunctional chelators for selective copper(II) binding
Paúrová, Monika ; Kotek, Jan (advisor) ; Vojtíšek, Pavel (referee)
Title: Bifunctional chelators for selective copper(II) binding Autor: Bc. Monika Paúrová Department: Department of Inorganic Chemistry, Faculty of Science Supervisor: doc. RNDr. Jan Kotek, Ph.D. Supervisor's e-mail: modrej@natur.cuni.cz Abstract: In this Master thesis, cyclam bifunctional derivatives bearing pendant phosphinate groups (4-methyl-11-p-aminobenzyl-1,4,8,11-tetraazacyclotetradecane-1,8- bis(methylenephosphinic acid)) and phosphonate groups (4-methyl-11-p-aminobenzyl- 1,4,8,11-tetraazacyclotetradecane-1,8-bis(methylenephosphonic acid)), were prepared and studied as potential ligands for complexation of divalent copper. These ligands are suitable for binding to a macromolecular carrier. Keywords: radiomedicine, copper, cyclam, chelating agent, phosphinate, phosphonate, kinetic inertness, kinetic lability, thermodynamic stability
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Design and synthesis of selective manganese(II) chelators
Míka, Luděk ; Kotek, Jan (advisor) ; Tauchman, Jiří (referee)
Title: Design and synthesis of selective manganese(II) chelators Autor: Luděk Míka Department: Department of Inorganic Chemistry, Faculty of Science Supervisor: doc. RNDr. Jan Kotek, Ph.D. Supervisor's e-mail address: modrej@natur.cuni.cz Abstract:Abstract:Abstract:Abstract: The aim of this project is to synthetize new kind of macrobicyclic ligands derived from cross-bridged cyclam for complexation of Mn2+ ions. These complexes may be potentially used as contrast agents in magnetic resonance imaging. Three macrobicyclic ligand with various pendant arms were synthesized. The ability to complex manganese(II) ions were studied by Mass Spectroscopy. Electrochemical properties of manganese(II) complexes with general chelating agents and one synthesized ligand were studied using cyclic voltammetry. Keywords:Keywords:Keywords:Keywords: cross-bridged cyclam, phosphonate, phosphinate, pendant arms, manganese
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Cross-bridged cyclams as manganese(II) chelators
Míka, Luděk ; Kotek, Jan (advisor) ; Vojtíšek, Pavel (referee)
Title: Cross-bridged cyclams as manganese(II) chelators Autor: Bc. Luděk Míka Department: Department of Inorganic Chemistry, Faculty of Science Supervisor: doc. RNDr. Jan Kotek, Ph.D. Supervisor's e-mail address: modrej@natur.cuni.cz Abstract: The aim of this project was to synthesize a new kind of Mn(II) complexes with ligands derived from cross-bridged cyclam. These complexes may be potentially used as contrast agents in magnetic resonance imaging. Six macrobicyclic ligands with various pendant arm were synthesized, three complexes were sucesfully prepared. Electrochemical properties of prepared manganese(II) complexes with synthesized ligands were studied using cyclic voltammetry. Relaxivity of prepared complexes was determined by 1 H NMR spectroscopy. Keywords: cross-bridged cyclam, phosphonate, phosphinate, pendant arms, manganese
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Synthesis of purine and pyrimidine derivatives with potential biological activities.
Jansa, Petr ; Holý, Antonín (advisor) ; Černý, Miloslav (referee) ; Rosenberg, Ivan (referee)
An extensive overview of the current state of the research in the field of the development of acyclic nucleoside phosphonates (ANPs) was elaborated, which quotes from 196 publications in abstracted journals. A new microwave-assisted methodology for the preparation of dialkyl haloalkylphosphonates was developed. Through strict control of the reaction temperatures in microwave reactor, it was possible to lower the amount of the reactants all the way to the ideal ratio of 1:1. With the use of a continuous-flow microwave reactor, it was possible to prepare the key building blocks for the subsequent syntheses of ANPs in large quantities (100 g), which significantly accelerates research in this area. The new method was patented and published. While studying various ANP prodrugs, a new highly effective methodology for the preparation of the diamides of ANPs was developed. The method starts directly from ANP diesters, which react with trimethylsilylbromide to form the corresponding bis(trimethylsilyl)esters of ANPs, which are well soluble in organic solvents and react smoothly during the subsequent introduction of aminoacid esters. Moreover, the reaction with trimethylsilylbromide protects the reactive groups present in the rest of the molecule and thus prevents undesired side reactions. Furthermore, using...
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Bifunctional chelators for selective copper(II) binding
Paúrová, Monika ; Kotek, Jan (advisor) ; Vojtíšek, Pavel (referee)
Title: Bifunctional chelators for selective copper(II) binding Autor: Bc. Monika Paúrová Department: Department of Inorganic Chemistry, Faculty of Science Supervisor: doc. RNDr. Jan Kotek, Ph.D. Supervisor's e-mail: modrej@natur.cuni.cz Abstract: In this Master thesis, cyclam bifunctional derivatives bearing pendant phosphinate groups (4-methyl-11-p-aminobenzyl-1,4,8,11-tetraazacyclotetradecane-1,8- bis(methylenephosphinic acid)) and phosphonate groups (4-methyl-11-p-aminobenzyl- 1,4,8,11-tetraazacyclotetradecane-1,8-bis(methylenephosphonic acid)), were prepared and studied as potential ligands for complexation of divalent copper. These ligands are suitable for binding to a macromolecular carrier. Keywords: radiomedicine, copper, cyclam, chelating agent, phosphinate, phosphonate, kinetic inertness, kinetic lability, thermodynamic stability
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Design and synthesis of selective manganese(II) chelators
Míka, Luděk ; Kotek, Jan (advisor) ; Tauchman, Jiří (referee)
Title: Design and synthesis of selective manganese(II) chelators Autor: Luděk Míka Department: Department of Inorganic Chemistry, Faculty of Science Supervisor: doc. RNDr. Jan Kotek, Ph.D. Supervisor's e-mail address: modrej@natur.cuni.cz Abstract:Abstract:Abstract:Abstract: The aim of this project is to synthetize new kind of macrobicyclic ligands derived from cross-bridged cyclam for complexation of Mn2+ ions. These complexes may be potentially used as contrast agents in magnetic resonance imaging. Three macrobicyclic ligand with various pendant arms were synthesized. The ability to complex manganese(II) ions were studied by Mass Spectroscopy. Electrochemical properties of manganese(II) complexes with general chelating agents and one synthesized ligand were studied using cyclic voltammetry. Keywords:Keywords:Keywords:Keywords: cross-bridged cyclam, phosphonate, phosphinate, pendant arms, manganese
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Bifunctional ligands for copper(II) complexation
Paúrová, Monika ; Lorenc, Miroslav (referee) ; Kotek, Jan (advisor)
In this Bachelor thesis, cyclam bifunctional derivatives bearing pendant phosphonate groups [4-methyl-11-p-carboxybenzyl-1,4,8,11-tetraazacyclotetradecane-1,8-bis(methylenephosphonic acid) and 4-methyl-11-p-nitrobenzyl-1,4,8,11-tetraazacyclotetradecane-1,8-bis(methylenephosphonic acid)], were prepared and studied as a potential ligands for complexation of divalent copper ion. These ligands can to be used as macromolecular carriers. Vytvořeno pomocí Software602 Print2PDF 8. Tuto řádku odstraníte zakoupením licence a aktivací na http://www.software602.cz/
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