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Communication | Regular issue | Vol 6, No. 2, 1977, pp.99-105
Published online, 1st January, 1970
DOI: 10.3987/R-1977-02-0099
A Biomimetic Approach to Benzophenanthridine Alkaloid from Protoberberine Alkaloid

Tetsuji Kametani,* Makoto Takemura, Masataka Ihara, Keiichiro Fukumoto, and Keiichi Takahashi

*Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan


10-Hydroxy-2,3,11-trimethoxyberbine (5) is transformed along by a biogenetic pattern into 7,8-dihydro-10-hydroxy-2,3,11-trimethoxybenzophenanthridine (11) via the methine base (6).