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Paper | Regular issue | Vol 68, No. 11, 2006, pp.2357-2364
Published online, 6th October, 2006
DOI: 10.3987/COM-06-10868
Nankakurine B, a New Alkaloid from Lycopodium hamiltonii and Revised Stereostructure of Nankakurine A

Yusuke Hirasawa, Jun’ichi Kobayashi, Yutaro Obara, Norimichi Nakahata, Nobuo Kawahara, Yukihiro Goda, and Hiroshi Morita*

*Faculty of Pharmaceutical Sciences, Hoshi University, Shinagawa-ku, Tokyo 142-8501, Japan

Abstract

A new Lycopodium alklaoid, nankakurine B (2), has been isolated from the club moss Lycopodium hamiltonii together with nankakurine A (1). Stereochemistry of 2 was elucidated by combination of NOESY correlations and chemical transformation. Stereostructure of 1 was revised to be the same as that of 2. Nankakurine A (1) induced secretion of neurotrophic factors from human astrocytoma cells.