Preparation of a Protected 3-Deoxy-<scp>d</scp>-<i>manno</i>-oct-2-ulosonate Glycal Donor for the Synthesis of β-KDO-Containing Oligosaccharides
作者:Tapan Kumar Pradhan、Chun Cheng Lin、Kwok-Kong Tony Mong
DOI:10.1021/ol500275j
日期:2014.3.7
A practical method for the synthesis of KDO glycal donors was developed. The prepared KDO donors exhibited excellent disastereoselectivity of glycosylation in a CH2Cl2–CH3CN solvent mixture, which was found to be associated with the isopropylidene protection at the C-4 and C-5 hydroxyls. The synthetic use of the KDO donor was demonstrated in the preparation of β-KDO-containing oligosaccharides.
开发了一种实用的合成KDO葡萄糖供体的方法。制备的KDO供体在CH 2 Cl 2 -CH 3 CN溶剂混合物中显示出极好的糖基化的对映选择性,发现与C-4和C-5羟基处的异亚丙基保护有关。在含β-KDO的寡糖的制备中证明了KDO供体的合成用途。