Identification and Characterization of Two New Methylicosadienoic Acids from Erylus formosus
- 1 January 1991
- journal article
- Published by American Chemical Society (ACS) in Journal of Natural Products
- Vol. 54 (1) , 305-309
- https://doi.org/10.1021/np50073a041
Abstract
The novel fatty acids 18-methyl-5,9-icosadienoic acid [1] and 19-methyl-5,9-icosadienoic acid [2] were identified in the Caribbean sponge Erylus formosus. Other interesting fatty acids identified were the branched acids 3-methylpentadecanoic acid and 3-methylhexadecanoic acid, which are known to possess larvicidal activity. The most stable conformation of the new acid 19-methyl-5,9-icosadienoic acid is also presented as predicted by Molecular Mechanics (MM2) calculations. The sterol composition of E. formosus is also reported.Keywords
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