Literature DB >> 32153305

Structure revision of trichotoxin, a chlorinated polyketide isolated from a Trichodesmium thiebautii bloom.

Matthew J Bertin1, Paul V Zimba2, Haiyin He3, Peter D R Moeller4.   

Abstract

NMR-guided fractionation of the lipophilic extract of Trichodesmium thiebautii filaments led to the isolation of a phenyl-containing chlorinated polyketide (1) and an alkyne-containing analogue (2). Comparison of spectroscopic and spectrometric data of 1 with the data of the previously reported trichotoxin, strongly suggested that these metabolites were identical and supports a structural revision of trichotoxin and its designation as trichotoxin A. In addition, we report the isolation and characterization of the alkyne-containing analogue trichotoxin B (2). Absolute configuration of 1 and 2 is proposed based on spectroscopic comparison to a close structural analog.

Entities:  

Keywords:  Cyanobacteria blooms; Trichodesmium thiebautii; polyketide; trichotoxin

Year:  2016        PMID: 32153305      PMCID: PMC7062361          DOI: 10.1016/j.tetlet.2016.11.062

Source DB:  PubMed          Journal:  Tetrahedron Lett        ISSN: 0040-4039            Impact factor:   2.415


  19 in total

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  2 in total

1.  Trichothiazole A, a dichlorinated polyketide containing an embedded thiazole isolated from Trichodesmium blooms.

Authors:  Richard S Belisle; Christopher W Via; Tracey B Schock; Tracy A Villareal; Paul V Zimba; Kevin R Beauchesne; Peter D R Moeller; Matthew J Bertin
Journal:  Tetrahedron Lett       Date:  2017-09-17       Impact factor: 2.415

2.  Isolation of Isotrichophycin C and Trichophycins G-I from a Collection of Trichodesmium thiebautii.

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Journal:  J Nat Prod       Date:  2020-08-20       Impact factor: 4.050

  2 in total

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