Synthesis and Evaluation as Irreversible Glycosidase Inhibitors of Mono- and Oligo(glycosylthio)benzoquinones
作者:Matthias Schnabelrauch、Andrea Vasella、Stephen G. Withers
DOI:10.1002/hlca.19940770319
日期:1994.5.11
9, 14, 19, 27, 34, and 38), and oxidized to the corresponding quinones (6, 10, 15, 20, 28, 35, and 40). The (glucosylthio)quinones 6, 15, 20, 28, and 35 were tested as time-dependent inactivators of a retaining β-1,4-glucosidase from Agrobacterium faecalis (Abg), which has a strong exo-glucosidase action (Table 1). Similarly, compounds 20, 28, and 35 were tested with a cellulase from Cellulomonas fimi
通过对2-巯基苯-1,4-二醇进行S-糖基化并且通过将乙酰化的1-硫代葡萄糖3添加至苯并-1,4-醌中来制备单(葡糖硫基)氢醌2(方案1)。采用第二种较高产率的方法制备一系列(葡糖硫基)氢醌。的除了3至2-氯苯并-1,4-醌,然后氧化,得到1- thioglucosides 7和12(1.3:1),而加入HCl至(glucosylthio)醌4和氧化,得到主要是12(方案1)。同样,双(葡糖硫基)氢醌33从3和4(方案4)获得甲酰胺,并从巯基16和苯并-1,4-醌获得(纤维二硫基)氢醌18(方案2)。将4-硫代葡糖苷21添加到苯并-1,4-醌(22)和4中,然后氧化,分别得到单(葡糖硫基)醌23和二取代的醌24和25(方案3)。的混合物24 / 25还从除获得3至23。三(葡糖硫基)氢醌36是通过将二氯醌29或二甲磺酸酯31加成/消除而获得的,二氯醌29或二甲磺酸酯31是以简化的方式制备的