title: The first naturally occurring alpha-methoxylated branched-chain fatty acids from the phospholipids of Amphimedon complanata.
abstract: The phospholipid fatty acid composition of the sponge Amphimedon complanata was reinvestigated, and the 2-methoxy-13-methyltetradecanoic acid, 2-methoxy-14-methylpentadecanoic acid, and 2-methoxy-13-methylpentadecanoic acid were identified for the first time in nature. Structure characterization was accomplished by means of gas chromatographic retention times and gas chromatography-mass spectrometry. These acids could have originated from bacteria in symbiosis with the sponge.
authors.affiliation: Department of Chemistry, University of Puerto Rico, Río Piedras 00931. ncarball@upracd.upr.clu.edu
authors.forename: N M
authors.initials: NM
authors.lastname: Carballeira
authors.forename: J
authors.initials: J
authors.lastname: Alicea
mesh_terms: D000818:Animals; D002849:Chromatography, Gas; D005227:Fatty Acids / Q000032:analysis* / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D010743:Phospholipids / Q000032:analysis*; D011161:Porifera / Q000737:chemistry*
chemical_list: C422847:2-methoxy-13-methylpentadecanoic acid; C422845:2-methoxy-13-methyltetradecanoic acid; C422846:2-methoxy-14-methylpentadecanoic acid; D005227:Fatty Acids; D010743:Phospholipids