F. Cafieri et al., LONGISIDE, A NOVEL DIGALACTOSYLCERAMIDE FROM THE CARIBBEAN SPONGE AGELAS-LONGISSIMA, Liebigs Annalen der Chemie, (12), 1994, pp. 1187-1189
The Caribbean sponge Agelas longissima produces large amounts of R)-2-
hydroxytetracosylamido]-1,3,4-hexadecanetriol (longiside, 1), a glycos
phingolipid with an unprecedented carbohydrate moiety containing a gal
actose unit in the unusual beta-furanose form. The structure of longis
ide was determined by spectroscopic analysis and chemical degradation.