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Communication | Regular issue | Vol 14, No. 3, 1980, pp.299-302
Published online, 1st January, 1970
DOI: 10.3987/R-1980-03-0299
A Synthesis of (±)-9-Demethyltubulosine

Masashi Ohba, Mitusko Hayashi, and Tozo Fujii*

*Faculty of Pharmaceutical Scicences, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-0934, Japan

Abstract

(±)-9-Demethyltubulosine (I) has been synthesized from the tricyclic amino acid VII through the intermediates VIII, IX, and IV. Nonconformity of synthetic (±)-I with demethyltubulosine indicated the alternative 10-demethyl structure (V) to be the correct expression for this Alangium alkaloid.