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<dc:title xml:lang="fr">Nouvelle stratégie d’accès aux diarylheptanoïdes cycliques : vers la synthèse totale du myricanol</dc:title>
<dcterms:alternative xml:lang="en">New strategy to access cyclic diarylheptanoids : towards the total synthesis of myricanol</dcterms:alternative>
<dc:subject xml:lang="fr">Synthèse totale et idéale</dc:subject>
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<dc:subject xml:lang="fr">Couplage de Suzuki-Miyaura</dc:subject>
<dc:subject xml:lang="fr">Métathèse cyclisante</dc:subject>
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<dcterms:abstract xml:lang="fr">Les diarylheptanoïdes macrocycliques possèdent des caractéristiques structurelles intrigantes et des propriétés biologiques prometteuses. Dans ce contexte, l’objectif de cette thèse consiste à développer une nouvelle voie de préparation pour cette attrayante famille de composés. Dans une première partie, nous avons envisagé de synthétiser le myricanol, un méta, méta-diarylheptanoïde tendu à 13 chaînons, par le biais d’un couplage de Suzuki-Miyaura et d’une métathèse cyclisante. Cette voie d’accès a conduit à la formation fortuite de dimères tête-queue à 26 chaînons du fait de la tension de cycle existante. Dans une deuxième partie, nous avons décrit la première voie d’accès directe, rapide et versatile à la famille des ortho,méta-diarylheptanoïdes via une stratégie de métathèse cyclisante. Ainsi, nous avons appliqué cette méthode à la synthèse de l’actinidione, produit naturel contenant un motif benzoquinone, en 14 étapes avec un rendement global de 18% et un haut degré d’idéalité dans le choix de la stratégie de synthèse.</dcterms:abstract>
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