Modifications at the 6-<i>O</i>-position of 1-deoxynojirimycin: facile and efficient synthesis of 6-<i>O</i>-alkylated-<i>N</i>-octyl-1-deoxynojirimycin derivatives
作者:Mehwish Iftikhar、Zhijie Fang
DOI:10.1080/07328303.2017.1397683
日期:2017.11.22
ABSTRACT A straightforward synthesis of N-alkylated 1-deoxynojirimycin derivatives modified at the 6-O-position has been described. The key intermediate in the synthesis of target compounds was 2,3,4-tri-O-benzyl-1,5-dideoxy-1,5-imino-D-glucitol, which was prepared from 2,3,4,6-tetra-O-benzyl-1,5-dideoxy-1,5-imino-D-glucitol. Optimal conditions have been established for the synthesis of the key intermediate
图形摘要摘要已经描述了在6-O-位修饰的N-烷基化的1-deoxynojirimycin衍生物的直接合成。合成目标化合物的关键中间体是2,3,4-三-O-苄基-1,5-二脱氧-1,5-亚氨基-D-葡萄糖醇,它是由2,3,4,6-制备的四-O-苄基-1,5-二脱氧-1,5-亚氨基-D-葡萄糖醇。通过改变反应参数为关键中间体的合成确定了最佳条件。主要的反应步骤是还原胺化反应和随后的6-O-烷基烷基化反应,然后进行氢解反应,从而制得目标化合物6-O-乙基-N-辛基-1,5-二脱氧-1,5-亚氨基-D-葡萄糖醇和6-O-丁基-N-辛基-1,5-二甲氧基-1,5-亚氨基-D-葡萄糖醇。该合成路线是灵活的,并且可用于合成其他亲脂性亚氨基糖衍生物。