Novel Synthesis of the Glycosidase Inhibitor Deoxymannojirimycin and of a Synthetic Precursor <scp>d</scp>-<i>l</i><i>yxo</i>-Hexos-5-ulose
作者:Julie L. O'Brien、Manuela Tosin、Paul V. Murphy
DOI:10.1021/ol016596s
日期:2001.10.1
The synthesis of D-lyxo-hexos-5-ulose (5-ketomannose, 1,5-dicarbonyl sugar), a synthetic precursor to the glycoprocessing inhibitor deoxymannojirimycin, was carried out by an in situ epoxidation and hydrolysis of a trimethylsilyl-protected 6-deoxyhex-5-enopyranoside followed by facile removal of the protecting groups. A novel nine-step synthesis of deoxymannojirimycin has also been achieved from methyl
[反应:请参见文字]。D-lyxo-hexos-5-ulose(5-酮甘露糖,1,5-二羰基糖)是糖加工抑制剂脱氧甘露糖霉素的合成前体,是通过三甲基甲硅烷基保护的6的原位环氧化和水解进行合成的-deoxyhex-5-enopyranoside,然后轻松除去保护基。还已经从甲基α-D-甘露吡喃糖苷中获得了一种新颖的九步法合成脱氧甘露糖霉素。这涉及从乙酰化的1-azido-6-deoxyhex-5-enopyranoside衍生的环氧化物的甲醇分解,然后脱保护和催化氢化。