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Communication | Regular issue | Vol 6, No. 12, 1977, pp.1981-1984
Published online, 1st January, 1970■ Photo-oxygenation of 8-Methoxyberberinephenolbetaine. A Novel Synthesis of Spirobenzylisoquinoline System from Berberine
Published online, 1st January, 1970
DOI: 10.3987/R-1977-12-1981
■ Photo-oxygenation of 8-Methoxyberberinephenolbetaine. A Novel Synthesis of Spirobenzylisoquinoline System from Berberine
Miyoji Hanaoka* and Chisato Mukai
*Faculty of Pharmaceutical Scicences, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-0934, Japan
Abstract
Photo-oxygenation of 8-methoxyberberinephenolbetaine(I1) afforded the spirobenzylisoquinoline (III), the imide-ester (IV). and methoxyberberal (V). Acidic hydrolysis of III yielded the diketospirobenzylisoquinoline (VII).
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