期刊
TETRAHEDRON LETTERS
卷 60, 期 8, 页码 621-625出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2019.01.043
关键词
Ciguatera fish poisoning; Maitotoxin-3; Gambierone; Liquid chromatography; Mass spectrometry; Nuclear magnetic resonance spectroscopy
资金
- Seafood Safety research programme [CAWX1801]
- Research Council of Norway through the Norwegian NMR Platform, NNP [226244/F50]
A new analogue of gambierone, 44-methylgambierone, was isolated from the benthic dinoflagellate Gambierdiscus australes collected from Raoul Island (Rangitahua/Kermadec Islands). This molecule has been previously reported as maitotoxin-3. The structure of 44-methylgambierone was elucidated using 1D- and 2D-nuclear magnetic resonance spectroscopy and mass spectrometry techniques. The nine-ring polyether backbone (A-I) and functional groups (carbonyl, terminal diol, 1,3-diene and monosulphate) are the same for both compounds with the addition of an olefinic methyl group being the only modification in 44-methylgambierone. (C) 2019 The Authors. Published by Elsevier Ltd.
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