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Updated: Jun 26, 2025

Preparation of Enantiopure Non-Activated Aziridines and Synthesis of Biemamide B, D, and epiallo-Isomuscarine
Published on: June 13, 2022
Total synthesis of jamaicamide B
Ryosuke Shigeta1, Takahiro Suzuki1, Kazuki Kaneko1
1Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyoda-ku, Tokyo 102-8554, Japan. t-usuki@sophia.ac.jp.
Researchers synthesized jamaicamide B, a neurotoxic compound from the cyanobacterium Moorea producens. This study confirms the structure of this complex marine natural product, including its specific stereochemistry.
Area of Science:
- Marine natural product synthesis
- Organic chemistry
- Neuroscience
Background:
- Jamaicamide B is a neurotoxic compound isolated from the cyanobacterium *Moorea producens*.
- Its structure is a unique hybrid of peptide and polyketide, featuring a pyrrolinone ring, β-methoxy enone, (E)-olefin, (E)-chloroolefin, and a terminal alkyne.
Purpose of the Study:
- To report the first total synthesis of jamaicamide B.
- To confirm the structure of jamaicamide B, including the stereochemistry at C9.
Main Methods:
- Total synthesis of jamaicamide B.
- Structural elucidation and confirmation using spectroscopic methods.
Main Results:
- Successful synthesis of (9R)-jamaicamide B, confirming its proposed structure.
- The synthesis established the stereochemistry at the C9 position.
Conclusions:
- The total synthesis provides a reliable method for obtaining jamaicamide B.
- Structural confirmation aids in understanding its neurotoxic mechanism and potential applications.
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