Immunomodulatory α-Galactoglycosphingolipids: Synthesis of 2'-Fluoro-2'-deoxy-α-galactosylceramide and an Evaluation of Its Immunostimulating Properties
作者:Lucia Barbieri、Valeria Costantino、Ernesto Fattorusso、Alfonso Mangoni、Nicoletta Basilico、Monica Mondani、Donatella Taramelli
DOI:10.1002/ejoc.200500053
日期:2005.8
In the framework of a project to assess the immunomodulating properties of α-galactosyl glycosphingolipids, the total synthesis of 1-O-(2-fluoro-2-deoxy-α-D-galactopyranosyl)-2-docosanoylamino-1,3,4-octadecanetriol (1), a 2'-fluoro analogue of the immunostimulating α-galactoglycosphingolipids, was accomplished. The glycosidation reaction of the azido precursor of sphingosine was performed using the
在评估 α-半乳糖基糖鞘脂的免疫调节特性的项目框架内,1-O-(2-fluoro-2-deoxy-α-D-galactopyranosyl)-2-docosanoylamino-1,3,4 的全合成-十八烷三醇 (1),免疫刺激性 α-半乳糖糖鞘脂的 2'-氟类似物,已完成。鞘氨醇的叠氮基前体的糖苷化反应使用向山糖苷化反应进行。与 α-半乳糖糖鞘脂相比,2'-氟类似物对小鼠脾细胞增殖的刺激大大降低,从而证实游离半乳糖 2-OH 基团对于免疫刺激活性是必不可少的。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)