Abstract
A series of glycosphingolipids and phosphonoglycosphingolipid containing only galactose as the sugar component were isolated from the marine snail, Chlorostoma argyrostoma turbinatum. The structures of these lipids were studied by methylation analysis, hydrogen fluoride degradation, proton magnetic resonance spectroscopy and fast atom bombardment mass spectrometry, and characterized as follows: the glycosphingolipids galactosyl beta(1-1)ceramide, galactosyl beta(1-6)galactosyl beta(1-1)ceramide, galactosyl beta(1-6)galactosyl beta(1-6)galactosyl beta(1-1)ceramide and galactosyl beta(1-6)galactosyl beta(1-6)galactosyl beta(1-6)galactosyl beta(1-1)ceramide, and phosphonoglycosphingolipid N-methylaminoethylphosphonyl galactosyl(1-1)ceramide. The main molecular species of the ceramide moiety were hexadecanoyl-octadecasphingenine and hydroxyhexadecanoyl-octadecasphingadienine in all of these sphingolipids.
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