Toward the Synthesis of Norzoanthamine: Building Carbocyclic Core by a Transannular Michael Reaction Cascade

[摘要]：A 12-step synthesis of the ABC carbocyclic core of norzoanthamine is described. It features an organocatalytic asymmetric intramolecular aidolization to set the stereochemistry of the entire molecule, a fragment coupling by selective alkylation of a bis-enolate, and a transannular Michael reaction cascade for rapid and stereoselective synthesis of the polycyclic core.

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