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Academic literature on the topic 'Glycogène phosphorylase – Inhibiteurs'
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Dissertations / Theses on the topic "Glycogène phosphorylase – Inhibiteurs"
Nagy, Véronika. "Synthèse d'inhibiteurs de glycogène phosphorylase." Lyon 1, 2003. http://www.theses.fr/2003LYO10212.
Full textBenltifa, Mahmoud. "Synthèses de glyco-héterocycles inhibiteurs de la glycogène phosphorylase et de protéine kinases." Lyon 1, 2006. http://www.theses.fr/2006LYO10115.
Full textWhile heterocyclic compounds have found early wide applications because if their broad spectrum of bioactivities, the development of Glycosciences has shown the importance of carbohydrates for Life, and the crucial roles they exert for the normal development of living organisms, or their control based on glycomimics. These reasons explain the topic of this thesis : SYNTHESIS OF GLYCOHETEROCYCLES AS INHIBITORS OF GLYCOGEN PHOSPHORYLASE AND PROTEIN KINASES. The first chapter describes 1,3-dipolar cycloadditions reactions between sugar-based acrylates and cinnamates and such dipoles as trimethylsilyldiazomethane and nitrile oxides. Modest stereoinductions were observed, which were enhanced by using chiral dipoles. Chapter 2 is devoted to cycloadditions between several nitrile oxides and exo-glucals, one hydroximo-lactone or benzoylated -D-glucopyranosyl cyanide. Chapter 3 concerns synthetic routes toward 3-C-glucosyl-1,2,4-oxadiazoles obtained when -D-glucopyranosyl cyanides were converted into amidoximes, then reacted by O-acylation followed by thermal cyclization. The prepared glycomimics were tested as glycogen phosphorylase (GP) and protein kinases (PK) inhibitors. The best GP inhibitor was a glucosyl-spiro-isoxazoline with a 2-naphthyl substituent (Ki : 630 nM). The 5-C-glucosyl-1,2,4-oxadiazoles were better inhibors of GP as compared to their 3-C-glucosyl analogs, as indicated by their Ki (respectively 2,4 and 26,2 M for molecules with a 2-naphthyl substituent). Some compounds inhibited also various PK
Goyard, David. "Synthèse par cycloaddition 1,3-dipolaire d’hétérocycles et spiro-hétérocycles glycosylés comme inhibiteurs de la glycogène phosphorylase et agents anti-hyperglycémiants : évaluation et tests biologiques." Thesis, Lyon 1, 2011. http://www.theses.fr/2011LYO10351/document.
Full textFollowing many studies lead on the inhibition of glycogen phosphorylase (GP) in our laboratory an trough several collaborations, this thesis describes in five chapters and a detailed experimental section, the most recent advances in the areas of synthesis and biological evaluation of GP’s catalytic site inhibitors. Chapter I is dedicated to the description of diabetes and especially type 2 diabetes of which treatment, the main goal of this project, requires knowledge of the complex mechanisms that regulates glycemia. Synthesized inhibitors are broken down into families according to their structure which associates an heterocyclic aglycon, prone to binding in the β pocket lining the active site, with a glycopyranoside or glycopyranosylidene moiety in the case of spiro compounds. Chapter II focuses on spiro-bicyclic inhibitors such as glucopyranosilidene-spiro-1,4,2-oxathiazoles and glucopranosylidene-spiro-isoxazolines. Chapter III describes the synthesis of C- and N-glycosyl-heterocycles, mainly glycopyranosyl-1,2,3-triazoles. Finally, chapter IV studies the palladium-mediated cross coupling fonctionalization of 4-substituted-5-halogenated-1,2,3-triazoles that represents an unexpected but interesting development of the project. To conclude, chapter V gathers the evaluation of synthesized molecules as GP inhibitors. Enzymology and crystallography as well as in vitro and in vivo experiments are presented
Goyard, David. "Synthèse par cycloaddition 1,3-dipolaire d'hétérocycles et spiro-hétérocycles glycosylés comme inhibiteurs de la glycogène phosphorylase et agents anti-hyperglycémiants : évaluation et tests biologiques." Phd thesis, Université Claude Bernard - Lyon I, 2011. http://tel.archives-ouvertes.fr/tel-00957789.
Full textLin, Li. "Conception et synthèse de nouveaux aryl C-glycosides en tant qu'inhibiteurs de PTP-1B ou GP et leurs activités biologiques." Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2007. http://tel.archives-ouvertes.fr/tel-00258958.
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