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<dc:title xml:lang="en">Catalytic strategies designed for precise framework alteration : navigating the uncharted chemical space for drug discovery</dc:title>
<dcterms:alternative xml:lang="fr">Stratégies catalytiques conçues pour la modification précise de squelettes moléculaires</dcterms:alternative>
<dc:subject xml:lang="fr">Catalyse</dc:subject>
<dc:subject xml:lang="fr">Synthèse</dc:subject>
<dc:subject xml:lang="fr">Produit naturel</dc:subject>
<dc:subject xml:lang="fr">Découverte de médicaments</dc:subject>
<dc:subject xml:lang="fr">Bioactivité</dc:subject>
<dc:subject xml:lang="fr">Modification précise de squelettes moléculaires</dc:subject>
<dc:subject xml:lang="fr">Réaction à plusieurs composants</dc:subject>
<dc:subject xml:lang="fr">Métathèse des oléfines</dc:subject>
<dc:subject xml:lang="fr">Docking</dc:subject>
<dc:subject xml:lang="en">Catalysis</dc:subject>
<dc:subject xml:lang="en">Synthesis</dc:subject>
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<dc:subject xml:lang="en">Drug discovery</dc:subject>
<dc:subject xml:lang="en">Bioactivity</dc:subject>
<dc:subject xml:lang="en">Precise framework alteration</dc:subject>
<dc:subject xml:lang="en">Multicomponent reaction</dc:subject>
<dc:subject xml:lang="en">Olefin metathesis</dc:subject>
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<tef:elementdEntree autoriteExterne="027285782" autoriteSource="Sudoc">Chimie organique</tef:elementdEntree>
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<dcterms:abstract xml:lang="fr">Nous avons introduit deux stratégies programmables pour obtenir des modifications précises squelette moléculaire de produits naturels complexes—une synthèse de base progressivement divergente et un stratagème d'édition à un stade avancé. Le développement d'un processus catalytique est au cœur de la première stratégie. Grâce à un réseau progressivement divergent, nous avons synthétisé un alcaloïde rare et ses analogues squelettiques. Le pivot de la seconde stratégie est la métathèse des oléfines (OM), y compris l'éthénolyse, la métathèse croisée et la métathèse de fermeture de cycle qui sont catalysées par divers complexes de Ru, W et Mo. La MO et d'autres réactions clés nous ont permis de synthétiser une série d'analogues squelettiques de l'épothilone. Les tests in vitro, les études de « docking » et la dynamique moléculaire valident notre approche et soulignent qu'un remodelage précis du cadre peut conduire à des pistes non naturelles intéressantes.</dcterms:abstract>
<dcterms:abstract xml:lang="en">We introduced two programmable strategies to achieve precise skeletal alterations on complex natural products—a progressively divergent ground-up synthesis scheme and a late-stage editing stratagem. Central to the former is the development of a catalytic enantioselective multicomponent process affording a primary hub, transformation of which by a progressively divergent network delivered a scarce alkaloid and its precision skeletal analogs. The linchpin of the latter strategy is the tactical use of olefin metathesis (OM) reactions, including ethenolysis, cross-metathesis, and ring-closing metathesis that are catalyzed by various Ru-, W-, and Mo-complexes. The confluence of OM and other key reactions led us to synthesize an array of skeletally altered epothilone C analogs. In vitro testing, docking, and molecular dynamics validate our approach and justify our contention that precise framework remodeling can lead to the identification of exciting non-natural leads.</dcterms:abstract>
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