Abstract
Marine algae belonging to the genus Laurencia are the most prolific producers of secondary metabolites compared to any other marine genus. The secondary metabolites produced by these plants are typically halogenated and have a wide variety of biological properties. The most common structural classes encountered being sesquiterpenes, diterpenes, triterpenes, sterols, C15 acetogenins and long-chain hydrocarbons. Sphingosines are among the lesser reported compounds isolated from this genus, with only one, (+)-N-(2S, 3R)-2-acetamido-3-acetoxyoctadecan-l-ol, being reported to date. In this poster presentation we report the isolation of additional sphingosines, including 1 and 2, from the genus Laurencia, this time from a new species collected in Brazil.
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