| Abstract | Cerebrosides have been isolated from chloroform-ethanol extract of the sponge Hymeniacidon assimilis. Their structures have been established with the aid of1H NMR spectroscopy, acid hydrolysis, and ozonolysis as the β-galactosides of the C16-, C17-, and C18-erythro-Δ4-sphingenines of normal, iso, and anteiso structures acylated in the amino groups with C21-, C22-, and C23-α-hydroxy acids. The cerebrosides from H. assimilis differ in structure from the corresponding compounds isolated previously from sponges. © 1990 Plenum Publishing Corporation. |
