摘要:
A stereoselective synthesis of the central aziridino[1,2-alpha]pyrrolidine substructure (19) of the antitumor agents azinomycin A and B is reported and featured as the key step an intramolecular Michael addition-elimination reaction between the aziridine and beta-bromo acrylate of intermediate 18; this compound was efficiently constructed via aldehyde 14, which was prepared from D-glucosamine.