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     <dc:title xml:lang="fr">Synthèse de nouveaux hétérohélicènes et étude de leurs propriétés</dc:title>
     <dcterms:alternative xml:lang="en">Synthesis of new heterohelicenes and study of their properties</dcterms:alternative>
     <dc:subject xml:lang="fr">hétérohélicène</dc:subject><dc:subject xml:lang="fr">thioxanthone</dc:subject><dc:subject xml:lang="fr">céramidonine</dc:subject><dc:subject xml:lang="fr">N-arylation</dc:subject><dc:subject xml:lang="fr">kinase Pim</dc:subject>
     <dc:subject xml:lang="en">heterohelicene</dc:subject><dc:subject xml:lang="en">thioxanthone</dc:subject><dc:subject xml:lang="en">ceramidonine</dc:subject><dc:subject xml:lang="en">N-arylation</dc:subject><dc:subject xml:lang="en">Pim-kinase</dc:subject><tef:sujetRameau><tef:vedetteRameauNomCommun>
						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="25023226X">Inhibiteurs des protéines kinases</tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="163755418">Arylation</tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="163867372">Hélicènes</tef:elementdEntree>
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     <dcterms:abstract xml:lang="fr">Les protéines kinases Pim jouent un rôle crucial dans de nombreux processus liés au développement de cancers. Une partie de cette étude s’est concentrée sur la synthèse de nouveaux inhibiteurs hélicoïdaux hautement fluorescents ciblant les kinases Pim, basés sur un squelette thioxanthone. Les caractéristiques physico-chimiques de ces composés permettent d’envisager leur utilisation en tant que sondes moléculaires. En outre, des analogues de céramidonine et de dicéramidonine ont été synthétisés, et il est important de noter que ces composés ont présenté des rendements quantiques de fluorescence exceptionnellement élevés. Ils ont également fait l’objet d’une analyse électrochimique, de même que des 1,8- di(arylamino)anthraquinones apparentées. Enfin, une réalisation significative de cette étude réside dans la synthèse d’un hétéro[4]hélicène original, ne racémisant pas à température ambiante. Non seulement ce composé présente des propriétés de fluorescence intéressantes mais également une affinité prometteuse envers les kinases Pim.</dcterms:abstract>
     <dcterms:abstract xml:lang="en">Pim protein kinases play a crucial role in many processes related to cancer development. Part of this study focused on the synthesis of new highly fluorescent helical inhibitors targeting Pim kinases, based on a thioxanthone scaffold. The physicochemical characteristics of these compounds suggest their potential use as molecular probes. Additionally, original analogues of ceramidonine and diceramidonine were synthesised, these new compounds exhibiting exceptionally high fluorescence quantum yields. An electrochemical analysis was also conducted on them and on related 1,8-di(arylamino)anthraquinones.Finally, a significant achievement of this study lies in the synthesis of an original hetero[4]helicene non-racemising at room temperature. Not only this compound shows valuable fluorescent properties but also promising affinity towards Pim kinases.</dcterms:abstract>
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       <tef:nom>Mast</tef:nom>
       <tef:prenom>Nicolas</tef:prenom>
       
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