Synthesis of a GM3 ganglioside analogue carrying a phytoceramide moiety by intramolecular glycosylation as a key step.
A novel analogue of ganglioside GM3, in which sphingosine was replaced with a phytosphingosine moiety, was synthesized by intramolecular glycosylation as a key step. Glucose, a reducing terminal of the saccharide, and phytoceramide were first tethered by succinic acid and the derivative used for the subsequent glycosidic bond formation. The obtained glycosyl phytoceramide was further glycosylated with the sialyl galactose residue to afford a fully protected GM3 derivative, which was converted into the desired, final compound by using conventional deprotection procedures.
Department of Applied Bio-organic Chemistry, Faculty of Applied Biological Sciences, Gifu University, Gifu 501-1193, Japan.
Kohki
K
Fujikawa
Akihiro
A
Imamura
Hideharu
H
Ishida
Makoto
M
Kiso
D002518:Ceramides / Q000737:chemistry*; D005679:G(M3) Ganglioside / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry; D006031:Glycosylation; D008968:Molecular Conformation
D002518:Ceramides; D005679:G(M3) Ganglioside