作者:Thomas Bachmann、Christian Schnurr、Laura Zainer、Michael Rychlik
DOI:10.1016/j.carres.2020.107940
日期:2020.3
Various 5'-β-saccharides of pyridoxine, namely the mannoside, galactoside, arabinoside, maltoside, cellobioside and glucuronide, were synthesized chemically according to Koenigs-Knorr conditions using α4,3-O-isopropylidene pyridoxine and the respective acetobromo glycosyl donors with AgOTf (3.0 eq.) and NIS (3.0 eq.) as promoters at 0 °C. Furthermore, 5'-β-[13C6]-labeled pyridoxine glucoside (PNG)
吡ido醇的各种5'-β-糖,即甘露糖苷,半乳糖苷,阿拉伯糖苷,麦芽糖苷,纤维二糖苷和葡糖苷酸,是根据Koenigs-Knorr条件,使用α4,3-O-异亚丙基吡啶基吡啶和各自的乙酰溴糖基供体与AgOTf化学合成的(3.0 eq。)和NIS(3.0 eq。)作为促进剂在0°C时。此外,从[13C6]-葡萄糖和吡ido醇开始制备5'-β-[13C6]-标记的吡ido醇葡萄糖苷(PNG)。此外,研究了两种合成5'-β-吡ox醛葡萄糖苷(PLG)的策略。