Keramaphidin C and keramamine C plausible biogenetic precursors of manzamine C from an Okinawan marine sponge
โ Scribed by Masashi Tsuda; Naoko Kawasaki; Jun'ichi Kobayashi
- Book ID
- 104214581
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- French
- Weight
- 177 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
Two new alkaloids, kmmnpbidin C (2) and kemmmine C (3). have been isoW from the 0kiMwan marine sponge Amphimedon sp. T&se compounds may bs plausible biogeahc precursors of mamamine C (I). which is considered to generate fmm coupling of kemmaphidin C (2) with tryptamine aud a CJ unit through kemmamim C (3).
๐ SIMILAR VOLUMES
## Abstract Isolation and structure elucidation of the title compounds (I), which show inhibitory activity against acetylcholinesterase, are described.
Theowpolide B (2) end C (J), hvo new macrolidea with vclrious functionalitiea, have beon isolated from theOkinawpnm;rrine8pongeI)uoncllasp.rmdtbeirstrucbneselucidatsdonthsbrsisof~ icdahcls well= chemical degrndstion e.x~ts. Ths absoh confiSur&ms oftha tehnal chirai centerof~lides A (l), B (2), and C