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. 2006 Aug;48(2):152-9.
doi: 10.1016/j.toxicon.2006.04.005. Epub 2006 May 9.

Isolation and identification of pectenotoxins-13 and -14 from Dinophysis acuta in New Zealand

Christopher Owen Miles  1 , Alistair L Wilkins, Allan D Hawkes, Dwayne J Jensen, Andrew I Selwood, Veronica Beuzenberg, A Lincoln Mackenzie, Janine M Cooney, Patrick T Holland
Affiliations

Isolation and identification of pectenotoxins-13 and -14 from Dinophysis acuta in New Zealand

Christopher Owen Miles et al. Toxicon. 2006 Aug.

Abstract

Two novel pectenotoxins (PTXs), PTX-13 and -14, were isolated from extracts of Dinophysis acuta collected from the west coast of South Island, New Zealand. The compounds were identified as oxidized analogues of PTX-2 by NMR spectroscopic and LC-MS studies. PTX-13 (32R-hydroxyPTX-2) corresponds to the unidentified analogue PTX-11x reported by [Suzuki et al., 2003. Liquid chromatography-mass spectrometry of spiroketal stereoisomers of pectenotoxins and the analysis of novel pectenotoxin isomers in the toxic dinoflagellate Dinophysis acuta from New Zealand. J. Chromatogr. A 992, 141-150]. PTX-13 underwent slow deuteration at the 13beta-position during NMR analysis. PTX-14 corresponds to the 32,36-dehydration product of PTX-13, and may be an artifact.

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