Arabinofuranosides from Mycobacteria: Synthesis of a Highly Branched Hexasaccharide and Related Fragments Containing β-Arabinofuranosyl Residues
作者:Haifeng Yin、Francis W. D'Souz、Todd L. Lowary
DOI:10.1021/jo010910e
日期:2002.2.1
The synthesis of 11 oligosaccharides (4-14) containing beta-arabinofuranosyl residues is reported. The glycans are all fragments of two polysaccharides, arabinogalactan and lipoarabinomannan, which are found in the cell wall complex of mycobacteria. In the preparation of the targets, the key step was a low-temperature glycosylation reaction that installed the beta-arabinofuranosyl residues with good
报道了11种含有β-阿拉伯呋喃糖基残基的寡糖(4-14)的合成。聚糖是分枝杆菌细胞壁复合物中发现的两种多糖阿拉伯半乳聚糖和脂质阿拉伯糖甘露聚糖的全部片段。在制备靶标中,关键步骤是低温糖基化反应,该反应安装了具有良好至优异立体控制效果的β-阿拉伯呋喃糖基残基。