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Communication | Regular issue | Vol 65, No. 5, 2005, pp.1031-1033
Published online, 3rd March, 2005
DOI: 10.3987/COM-05-10360
Total Synthesis and Structure Reinvestigation of So-called Isochimonanthine

Yohei Matsuda, Mariko Kitajima, and Hiromitsu Takayama*

*Graduate School of Pharmaceutical Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan


The data for the proposed structure of isochimonanthine, a dimeric pyrrolidinoindoline alkaloid that was synthesized from tryptamine, were not identical with those of the natural product. Careful structure reinvestigation led to the conclusion that the so-called isochimonanthine was a ca. 1:1 mixture of (+)-chimonanthine and meso-chimonanthine.