Synthetic studies on sialoglycoconjugares. Part CVII. Synthetic Studies on Selectin Ligands/Inhibitors. Synthesis and Biological Evaluation of Sulfated and Phosphorylated .BETA.-D-Galacto- and Lactopyranosides Containing Fatty-Alkyl Residues of Different Carbon Chain Lengths.
作者:Takao IKAMI、Nobuaki TSURUTA、Hideaki INAGAKI、Takuji KAKIGAMI、Yukiharu MATSUMOTO、Noboru TOMIYA、Takahito JOMORI、Toshinao USUI、Yasuo SUZUKI、Harunari TANAKA、Daisei MIYAMOTO、Hideharu ISHIDA、Akira HASEGAWA、Makoto KISO
DOI:10.1248/cpb.46.797
日期:——
selectin-ligand interactions, fourteen sulfated and eight phosphorylated beta-D-galacto- and lactopyranosides containing branched fatty-alkyl residues in place of the ceramide have been synthesized. Regioselective sulfation of the parent glycolipids through the dibutylstannylene acetal with a certain amount of sulfur trioxide-trimethylamine complex produced the target sulfated glycolipids, while stepwise phosphorylation
为了研究生物选择蛋白-配体的相互作用,已合成了十四个硫酸化和八个磷酸化的β-D-半乳糖和乳糖吡喃糖苷,它们含有取代的脂肪烷基残基的神经酰胺。母体糖脂通过二丁基亚锡缩醛与一定量的三氧化硫-三甲胺络合物的区域选择性硫酸化产生目标硫酸化糖脂,而通过用二苄氧基(二异丙基氨基)膦处理适当保护的二醇进行逐步磷酸化,得到磷酸化的糖脂。在体外实验过程中,合成糖脂显示出有趣的抑制HL-60细胞与固定化P-,L-和E-选择素结合的模式。此外,使用计算机建模技术,我们检查了配体-选择蛋白复合物形成的分子基础。这些糖脂可用作针对选择素依赖性炎症的治疗剂。