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Sinteza derivatov triazola in alfa-cianocimetne kisline kot zaviralcev undekaprenil pirofosfat sintaze = The synthesis of triazole and alpha-cyanocinnamic acid derivatives as inhibitors of undecaprenyl pyrophosphate synthase : magistrski študijski program Industrijska farmacijaKlenovšek, MašaPeptidoglikan je kompleksen heteropolimer, ki obkroža citoplazemsko membrano. Sestavljen je iz linearnih polisaharidnih verig, prečno premreženih s kratkimi peptidi. Undekaprenil difosfat (UPP) ima ... vlogo nosilca lipidov pri biosintezi peptidoglikana. Encim, ki katalizira sintezo UPP, je undekaprenil difosfat sintaza (UPPS). Zaradi te ključne vloge pri biosintezi bakterijskih peptidoglikanov je UPPS zanimiva tarča za zdravilne učinkovine. V sklopu magistrske naloge smo načrtovali in sintetizirali derivate triazola in alfa-cianocimetne kisline, ki so bili predhodno odkriti z virtualnim rešetanjem, kot potencialne zaviralce UPPS. Uporabili smo dve različni večstopenjski sintezni poti. Sinteza derivatov alfa-cianocimetne kisline je obsegala Willamsovo sintezo etra, Knoevenaglovo kondenzacijo, hidrolizo estra do karboksilne kisline ter sintezo amida iz antranilne kisline preko kislinskega klorida. Sinteza derivatov triazola pa je potekala preko acilhidrazida do tiolnega derivata, ki ga potem z ustreznim alkil bromidom alkiliramo do končnega produkta. Spojin, pridobljenih z virtualnim rešetanjem, nam ni uspelo sintetizirati. Težavo nam je predstavljala zadnja stopnja hidrolize estra do karboksilne kisline. Vendar pa nam je v primeru derivatov alfa-cianocimetne kisline uspelo postaviti postopek do ustreznih estrov, nadaljnja optimizacija hidrolize do karboksilnih kislin pa bo izziv za prihodnost. Pri derivatih triazola pa nam ni uspelo alkilirati tiolne skupine. Sintetiziranim derivatom smo s pomočjo biokemijskega testiranja na encimu UPPS določili zaviralno aktivnost. Nobena izmed spojin se ni izkazala kot zaviralec, smo pa na podlagi biokemijskega testiranja potrdili, da je za zaviralno delovanja encima UPPS pri derivatih alfa-cianocimetne kisline potrebna prosta karboksilna skupina.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Klenovšek], 2021Language - slovenianCOBISS.SI-ID - 54406147
Author
Klenovšek, Maša
Other authors
Sova, Matej, 1979-
Topics
Farmacevtska kemija |
encim UPPS |
zaviralci |
protibakterijske učinkovine |
alfa-cianocimetna kislina |
sinteze spojin
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Library | Call number – location, accession no. ... | Copy status |
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Faculty of Pharmacy, Lj. | Knjižnica mind 615 KLENOVŠEK MAŠA Sinteza 204 IN: 0016869 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Klenovšek, Maša | ![]() |
Sova, Matej, 1979- | 25490 |
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