作者:Michael H. Haukaas、George A. O'Doherty
DOI:10.1021/ol025844x
日期:2002.5.1
[reaction: see text] The enantioselective syntheses of C-6 O-TBS- and N-Cbz-protected 2-deoxy- and 2,3-dideoxysugars have been achieved in 6-8 steps from furfural. A combination of chemo-, regio-, and diastereoselective oxidation and reduction reactions produced deoxysugars with various C-6 substitution. A key development of this route was the use of o-nitrobenzenesulfonylhydrazide (NBSH) as a diimide
[反应:见正文] C-6 O-TBS和N-Cbz保护的2-deoxy-和2,3-dideoxysugar的对映选择性合成已从糠醛经6-8个步骤完成。化学,区域和非对映选择性氧化和还原反应的结合产生了具有各种C-6取代的脱氧糖。该途径的关键发展是使用邻硝基苯磺酰肼(NBSH)作为二酰亚胺前体。这些总体程序允许以对映体形式合成八种脱氧糖。