9786200458971 - synthesis of [d4u]-spacer-[hi-236] bifunctional hiv-1 reverse transcriptase inhibitors di muhanji, clare (8 risultati)
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Da: moluna, Greven, Germaniamoluna
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Da: Books Puddle, New York, NY, U.S.A.Books Puddle
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book describes the design and synthesis of bifunctional drugs combining a nucleoside (d4U) and non-nucleoside (HI-236) reverse transcriptase inhibitor linked via different spacers between C-5 of the NRTI and O-1 of the NNRTI.…Three targets were successfully synthesized in a divergent manner from uridine in 13 steps for the butyne target and 19 steps for targets bearing PEG-propyne units using Sonogashira coupling as a key step. The most challenging step of the synthesis involved Boc deprotection and thiourea condensation in the final step, which suffered from anomeric cleavage with loss of the sugar moiety. As a result, the target with a three-carbon propynyl spacer could not be accessed. Progress towards the synthesis of a bifunctional system bearing a saturated and more flexible tether is highlighted in Chapter 4. The key reactions included Sonogashira coupling of iodo nucleosides, 2',3'-dideoxygenation of the vicinol diol, phenolic alkylation and condensation of amine with thiourea reagent. The synthesis surmounted several challenges, with chemoselective distinction of unsaturation via late introduction of the d4U double bond using Corey-Winter methodology. 256 pp. Englisch.
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Da: Majestic Books, Hounslow, Regno UnitoMajestic Books
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Da: preigu, Osnabrück, Germaniapreigu
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Taschenbuch. Condizione: Neu. Synthesis of [d4U]-Spacer-[HI-236] Bifunctional HIV-1 Reverse Transcriptase Inhibitors | Clare Muhanji | Taschenbuch | Englisch | 2019 | LAP LAMBERT Academic Publishing | EAN 9786200458971 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]pr…eigu[dot]de | Anbieter: preigu Print on Demand.
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Da: Biblios, frankfurt am main, HESSE, GermaniaBiblios
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Da: buchversandmimpf2000, Emtmannsberg, BAYE, Germaniabuchversandmimpf2000
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Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -This book describes the design and synthesis of bifunctional drugs combining a nucleoside (d4U) and non-nucleoside (HI-236) reverse transcriptase inhibitor linked via different spacers between C-5 of the NRTI and O-1 of the NNRTI. Thre…e targets were successfully synthesized in a divergent manner from uridine in 13 steps for the butyne target and 19 steps for targets bearing PEG-propyne units using Sonogashira coupling as a key step. The most challenging step of the synthesis involved Boc deprotection and thiourea condensation in the final step, which suffered from anomeric cleavage with loss of the sugar moiety. As a result, the target with a three-carbon propynyl spacer could not be accessed. Progress towards the synthesis of a bifunctional system bearing a saturated and more flexible tether is highlighted in Chapter 4. The key reactions included Sonogashira coupling of iodo nucleosides, 2',3'-dideoxygenation of the vicinol diol, phenolic alkylation and condensation of amine with thiourea reagent. The synthesis surmounted several challenges, with chemoselective distinction of unsaturation via late introduction of the d4U double bond using Corey-Winter methodology.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 256 pp. Englisch.
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Da: AHA-BUCH GmbH, Einbeck, GermaniaAHA-BUCH GmbH
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Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - This book describes the design and synthesis of bifunctional drugs combining a nucleoside (d4U) and non-nucleoside (HI-236) reverse transcriptase inhibitor linked via different spacers between C-5 of the NRTI and O-1 of the NNRTI. Three… targets were successfully synthesized in a divergent manner from uridine in 13 steps for the butyne target and 19 steps for targets bearing PEG-propyne units using Sonogashira coupling as a key step. The most challenging step of the synthesis involved Boc deprotection and thiourea condensation in the final step, which suffered from anomeric cleavage with loss of the sugar moiety. As a result, the target with a three-carbon propynyl spacer could not be accessed. Progress towards the synthesis of a bifunctional system bearing a saturated and more flexible tether is highlighted in Chapter 4. The key reactions included Sonogashira coupling of iodo nucleosides, 2',3'-dideoxygenation of the vicinol diol, phenolic alkylation and condensation of amine with thiourea reagent. The synthesis surmounted several challenges, with chemoselective distinction of unsaturation via late introduction of the d4U double bond using Corey-Winter methodology.
