Stereospecific synthesis of sugar-1-phosphates and their conversion to sugar nucleotides
作者:Shannon C. Timmons、David L. Jakeman
DOI:10.1016/j.carres.2008.01.046
日期:2008.4
products, efficient access to stereopure sugar nucleotide donor substrates is required. Herein, the rapid synthesis and purification of eight sugar nucleotides is described by a facile 30 min activation of nucleoside 5'-monophosphates bearing purine and pyrimidine bases with trifluoroacetic anhydride and N-methylimidazole, followed by a 2 h coupling with stereospecifically prepared sugar-1-phosphates. Tributylammonium
随着Leloir糖基转移酶越来越多地用于制备寡糖,糖结合物和糖基化天然产物,需要有效地获得立体纯糖核苷酸供体底物。本文中,通过用三氟乙酸酐和N-甲基咪唑将带有嘌呤和嘧啶碱基的核苷5'-单磷酸核苷轻松活化30分钟,然后与立体定向制备的糖-1偶联2小时,从而快速合成和纯化八个糖核苷酸-磷酸盐。碳酸氢三丁铵和乙酸三丁铵是分别用于6-脱氧糖核苷酸和己糖或戊糖衍生糖核苷酸的C18反相纯化的离子对试剂。