Stereoselective Synthesis of the Core Structure of the Nephritogenoside Glycopeptide
作者:Hong Zhang、Yali Wang、René Thürmer、Mark Meisenbach、Wolfgang Voelter
DOI:10.1002/jlac.199719970910
日期:1997.9
readily accessible phenylsulfinyl glycoside proved to be an excellent glycosyl donor, leading to high yields and good selectivity. The extremely mild conditions utilized in glycosylation reactions allow trityl and other sensitive protecting groups to be used for temporary protection. The fact that phenyl thioglycosides function as glycosyl acceptors during the coupling reaction and can easily be transformed
报道了使用苯基亚磺酰基方法在肾上腺皮质激素单元中构建O-糖苷键的新策略。容易获得的苯亚磺酰基糖苷被证明是出色的糖基供体,导致高收率和良好的选择性。糖基化反应中使用的极其温和的条件允许将三苯甲基和其他敏感的保护基团用于临时保护。苯基硫代糖苷在偶联反应过程中起糖基受体的作用,并且可以通过转化为苯基亚硫酰基糖苷而容易地转化为糖基供体,这一事实使得能够以非常方便的方式制备复杂的寡糖。