Synthesis of a GM3 ganglioside analogue carrying a phytoceramide moiety by intramolecular glycosylation as a key step
作者:Kohki Fujikawa、Akihiro Imamura、Hideharu Ishida、Makoto Kiso
DOI:10.1016/j.carres.2008.05.007
日期:2008.11
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
通过分子内糖基化作为关键步骤,合成了神经节苷脂GM3的新型类似物,其中鞘氨醇被植物鞘氨醇部分取代。葡萄糖(糖的还原性末端)和植物神经酰胺首先通过琥珀酸束缚,衍生物用于随后的糖苷键形成。将获得的糖基植物神经酰胺进一步用唾液酸半乳糖残基糖基化,得到完全保护的GM3衍生物,通过使用常规的脱保护程序将其转化为所需的最终化合物。