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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Synthesis of novel C-nucleosides with modified sugar
 Havlíček, Vojtěch ; Hocek, Michal (advisor) ; Janeba, Zlatko (referee)
In this bachelor thesis, a new method of preparation of C-nukleosides with 2'-deoxy-2',2'-difluoro modified sugar part was developed. During the research, nucleophilic addition on furanolacton was used and for this modification, the method of modular approach was developed. Using this method, it is possible to prepare a series of structurally similar compounds. We succeeded in preparing two C-nukleosides, potentially biologically active substances.
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Modulární metodika na přípravu 3- a 4- substituovaných benzenových a anilínových C-ribonukleosidů
 Štefko, Martin ; Hocek, Michal
A novel modular, efficient and practical methodology for the preparation of 3- and 4-substituted phenyl and aniline C-ribonucleosides was developed. The key intermediates were synthesized in two steps from TBS-protected ribonolactone in 75% and 66% yields, respectively, as pure beta-anomers. The bromophenyl intermediates were subjected to a series of palladium catalyzed cross-coupling, aminations and alkoxylation reactions to give, after deprotection a series of free 1 beta-(3- and 4-alkyl, -aryl, -amino -alkoxyphenyl and -hetaryl substituted phenyl)-C-ribonucleosides (20 examples).
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