A Rapid and Mild Sulfation Strategy Reveals Conformational Preferences in Therapeutically Relevant Sulfated Xylooligosaccharides
作者:Yen Vo、Brett D. Schwartz、Hideki Onagi、Jas S. Ward、Michael G. Gardiner、Martin G. Banwell、Keats Nelms、Lara R. Malins
DOI:10.1002/chem.202100527
日期:2021.7.7
residues, as standards for biological studies. Near quantitative sulfation was accomplished using a remarkably mild and operationally simple protocol which avoids the need for high temperatures and a large excess of the sulfating reagent. Moreover, the sulfated xylooligomer standards so obtained enabled definitive identification of a pyridinium contaminant in a sample of a commercially prepared Pentosan
虽然硫酸化木寡糖是有前途的治疗引线为病痛的多个,结构复杂性和非均质性的商业部署的形式(例如多硫酸戊聚糖1) 使他们进一步临床开发的道路复杂化。我们在本文中描述了迄今为止制备的最大的均质过硫酸化木寡聚体的合成,包括多达八个木糖残基,作为生物学研究的标准。使用非常温和且操作简单的方案完成了接近定量的硫酸化,该方案避免了对高温和大量过量硫酸化试剂的需要。此外,如此获得的硫酸化木寡聚体标准品能够明确鉴定商业制备的戊聚糖药物样品中的吡啶鎓污染物,并提供对成分过硫酸化单糖残基的构象偏好的重要见解。由于硫酸盐的空间分布是硫酸化寡糖与内源性靶标结合的关键决定因素,