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Molecules 2012, 17(2), 2119-2125; doi:10.3390/molecules17022119
Article

A New Bromoallene-Producing Chemical Type of the Red Alga Laurencia nangii Masuda

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Received: 27 December 2011 / Revised: 8 February 2012 / Accepted: 13 February 2012 / Published: 21 February 2012
(This article belongs to the Section Metabolites)
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Abstract

Six populations of Laurencia nangii were found to produce three bromoallenes; dihydroitomanallene B (1), itomanallene B (2) and pannosallene (3). Prior to this report, L. nangii were only known to produce C15-acetogenins with acetylene functionality. This could be regarded as a new chemical race of L. nangii. The compound structures were elucidated on the basis of spectroscopic analysis and comparison with those previously reported in literature. Compound 1, dihydroitomanallene B, was isolated as a new compound representing a minor variation of itomanallene B (2).
Keywords: Laurencia nangii; C15-acetogenin; bromoallene; chemical race Laurencia nangii; C15-acetogenin; bromoallene; chemical race
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Kamada, T.; Vairappan, C.S. A New Bromoallene-Producing Chemical Type of the Red Alga Laurencia nangii Masuda. Molecules 2012, 17, 2119-2125.

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