Development of a Divergent Route to Erythrina Alkaloids

Article abstract of DOI:10.1055/s-0039-1690792

Erythrina alkaloids were identified at the end of the 19th century and today, more than 100 members of the erythrinane family have been isolated. They are characterized by a unique tetracyclic, α-tertiary spiroamine scaffold. Herein we detail our efforts towards the development of a divergent enantioselective synthesis of (+)-dihydro-β-erythroidine (DHβE) - one of the most prominent members of this intriguing family of natural products. 1 Introduction 2 Synthetic Strategy 2.1 First Generation 2.2 Second Generation 2.3 Third Generation 2.3.1 Radical Endgame 2.3.2 Completion of the Total Synthesis 3 Conclusion.