title: The agminosides: naturally acetylated glycolipids from the New Zealand marine sponge Raspailia agminata.
abstract: Examination of the New Zealand sponge Raspailia agminata resulted in the isolation of five members of a novel family of glycolipids, agminosides A-E (1-5). These large and complex molecules contain up to six partially acetylated glucose residues. The chromatographic separation of these compounds was a challenge due to the similarity of the congeners and their lack of a chromophore. MS-guided isolation followed by extensive NMR analysis and chemical derivatization eventually led to the purification and identification of 1-5.
authors.affiliation: School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand.
authors.forename: Joanna M
authors.initials: JM
authors.lastname: Wojnar
authors.forename: Peter T
authors.initials: PT
authors.lastname: Northcote
mesh_terms: D000107:Acetylation; D000818:Animals; D006017:Glycolipids / Q000737:chemistry* / Q000302:isolation & purification*; D008386:Marine Biology; D015394:Molecular Structure; D009520:New Zealand; D019906:Nuclear Magnetic Resonance, Biomolecular; D011161:Porifera / Q000737:chemistry*
chemical_list: D006017:Glycolipids; C557960:agminoside A