Four-Step Total Synthesis of (+)-Euphococcinine and (±)-Adaline

Abstract

A four-step enantiospecific total synthesis of bicyclic homotropinone alkaloid euphococcinine and a racemic synthesis of adaline were reported. Key reactions in the synthesis are the diastereoselective addition of a Wittig phosphorene to the ketimines derived from Davis−Ellman sulfinamides, ring-closing metathesis, and intramolecular Michael reactions.Note pubs.acs.org/joc