Synthesis of regio- and stereospecifically C-deuterated derivatives of glycosidase inhibitors 1-deoxymannonojirimycin and 2,5-dideoxy-2,5-imino-d-mannitol by intramolecular reductive amination employing deuterium gas1Dedicated to Professor Herfried Griengl on the occasion of his 60th birthday.1
作者:Martin H. Fechter、Günther Gradnig、Andreas Berger、Christian Mirtl、Werner Schmid、Arnold E. Stütz
DOI:10.1016/s0008-6215(98)00159-1
日期:1998.6
d -(5- 2 H)mannitol, a partially protected derivative of 1-deoxymannonojirimycin. Conventional deprotection furnished 1-deoxy-(5- 2 H)mannonojirimycin. Reduction and intramolecular reductive amination of free 5-azido-5-deoxy- d -fructopyranose gave 2,5-dideoxy-2,5-imino- d -(5- 2 H)mannitol in one step. Likewise, 2,5-dideoxy-2,5-imino- d -(5- 2 H)glucitol was obtained from 5-azido-5-deoxy- l -sorbopyranose
摘要6-叠氮基1,3,4-三-O-苄基-6-脱氧-d-果糖呋喃糖可以很容易地从已知的6,6'-diazido-6,6'-dideoxysucrose分两步获得可从蔗糖分两步获得。通过在阮内镍上用2 H 2进行受控氢化并伴随分子内还原胺化作用将该物质环化,得到3,4,6-三-O-苄基-1,5-二甲氧基-1,5-亚氨基-d-(5- 2 H)甘露糖醇,一种1-脱氧甘露糖苷霉素的部分保护的衍生物。常规的脱保护作用提供了1-脱氧-(5- 2 H)甘露ononjirimycin。游离的5-叠氮基5-脱氧-d-果糖吡喃糖的还原和分子内还原胺化在一个步骤中得到2,5-二脱氧-2,5-亚氨基-d-(5- 2 H)甘露醇。同样地,从5-叠氮基5-脱氧-1-山梨糖醇糖获得2,5-二脱氧-2,5-亚氨基-d-(5- 2 H)葡萄糖醇。