A general approach to the synthesis of dideoxy and trideoxyiminoalditols from β-d-glycosides
作者:Gabriela Pistia、Rawle I. Hollingsworth
DOI:10.1016/s0008-6215(00)00124-5
日期:2000.10
Imino sugars (also called azasugars), a class of compounds of which the 1,5-dideoxy and 1,5,6-trideoxyiminoalditols are members, are important glycosidase inhibitors with very high potential as drugs. Their potential therapeutic applications range from the treatment of diabetes to cancer and AIDS. We present here a general method for the preparation of such compounds with the D-gluco and D-galacto
氨基糖(也称为氮杂糖)是一类重要的糖苷酶抑制剂,具有作为药物的巨大潜力,其中一类化合物的1,5-二甲氧基和1,5,6-三甲氧基亚氨基醛糖醇是其中的一员。它们的潜在治疗应用范围从糖尿病到癌症和艾滋病。我们在这里提出了一种从β-D-糖苷开始制备具有D-葡萄糖和D-半乳糖构型的化合物的一般方法。该方法特别具有吸引力,因为它具有很高的立体选择性和直接性。关键步骤是将糖苷选择性氧化为己磺酸,并将肟衍生物还原为内酰胺,然后将其进一步还原为目标化合物。如果C-6位带有乙酰氧基,则可以在还原过程中将其脱氧。然后产生三脱氧亚氨基糖。肟还原前的脱乙酰基产生双脱氧化合物。