7,11-Cyclobotryococca-5,12,26-triene, a Novel Botryococcene-Related Hydrocarbon Occurring in Natural Environments
- 14 April 2000
- journal article
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 2 (9) , 1271-1274
- https://doi.org/10.1021/ol0056980
Abstract
With the unambiguous structural characterization of 7,11-cyclobotryococca-5,12,26-triene 1 by NMR, a novel C30 botryococcene-related hydrocarbon skeleton bearing a midchain five-membered ring has been identified in organic-rich sediments from Lake Cadagno (Switzerland). This compound may originate from the green alga Botryococcus braunii (race B) widespread in recent and past environments. Alternatively, it may also be a yet unreported lipid of green sulfur photosynthetic bacteria (Chlorobiaceae) or a microbial transformation product of the farnesol produced by the latter.Keywords
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