Stereoselective Synthesis of Tabtoxinine-β-lactam by Using the Vinylogous Mukaiyama Aldol Reaction with Acetate-Type Vinylketene Silyl N,O-Acetal and α-Keto-β-lactam

Hirotaka Ejima, Fumihiro Wakita, Ryo Imamura, Takuya Kato, Seijiro Hosokawa

    Research output: Contribution to journalArticle

    9 Citations (Scopus)


    Stereoselective total synthesis of tabtoxinine-β-lactam has been achieved. The vinylogous Mukaiyama aldol reaction with vinylketene silyl N,O-acetal and α-keto-β-lactam proceeded to afford the adduct possessing a TβL-skeleton with a tert-alcohol in high yield and stereoselectivity. Stereoselective introduction of the amino group has been accomplished by azidation at the α position of the imide followed by hydrogenolysis. A straightforward method to achieve the potent inhibitor of glutamine synthetase, possessing both α-hydroxy-β-lactam and α-amino acid moieties, has been established.

    Original languageEnglish
    Pages (from-to)2530-2532
    Number of pages3
    JournalOrganic Letters
    Issue number10
    Publication statusPublished - 2017 May 19


    ASJC Scopus subject areas

    • Biochemistry
    • Physical and Theoretical Chemistry
    • Organic Chemistry

    Cite this