New phospholipid fatty acids from the Caribbean spongeEctyoplasia ferox
作者： Néstor M. Carbelleira , Marie E. Maldonado
DOI: 10.1007/BF02535143
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摘要: The phospholipid fatty acids from the Caribbean spongeEctyoplasia ferox were studied. novel 25-methyl-5,9-heptacosadienoic (1) and 26-methyl-5,9-heptacosadienoic (2) identified in 3.4 2.0% abundance, respectively, representing longest set of Δ5,9iso andanteiso yet isolated a marine sponge. new acid 10,13-dimethyltetradecanoic (3), unusual 15-methyl-11-hexadecenoic (4) also 9-methyl-11-hexadecenoic (5) inE. ferox. principal sterols fromE. 24-ethylcholest-5-en-3β-ol (46%) 24(R)-methylcholesta-5,22-dien-3β-ol (14%).
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