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À propos de : Revisiting a Classic Approach to the Aspidosperma Alkaloids: An Intramolecular Schmidt Reaction Mediated Synthesis of(+)-Aspidospermidine        

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  • Revisiting a Classic Approach to the Aspidosperma Alkaloids: An Intramolecular Schmidt Reaction Mediated Synthesis of(+)-Aspidospermidine
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  • A total synthesis of (+)-aspidospermidine (1) is described. The key reactions used in the synthesisof this pentacyclic Aspidosperma alkaloid were a deracemizing imine alkylation/Robinson annulationsequence, a selective “redox ketalization”, and an intramolecular Schmidt reaction. A Fischerindolization step carried out on a tricyclic ketone mirrored the sequence reported by Stork andDolfini in their classic aspidospermine synthesis.
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