Synthesis of the Tetracyclic Skeleton of the Lycopodium Alkaloid Lycopladine H via a Pivotal Double Hydroformylation/Intramolecular Reductive Amination Sequence

摘要

A synthesis of the complete tetracyclic framework of the structurally unique Lycopodium alkaloid lycopladine H has been accomplished using a strategy involving a double alkene hydroformylation/intramolecular reductive amination to form the azocane and spiro-piperidine moieties of the natural product.