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Report | Regular issue | Vol 14, No. 11, 1980, pp.1791-1792
Published online, 1st January, 1970
DOI: 10.3987/R-1980-11-1791
A Transformation of Tetrahydroberberine to a Retroprotoberberine

Miyoji Hanaoka,* Mitsuru Inoue, Shingo Yasuda, and Takeshi Imanishi

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


The retroprotoberberine (8) was synthesized from tetrahydroberberine (4) via the urethane (6) and the aminoalcohol (7).