Flexible Synthesis of 2-Deoxy-<i>C</i>-Glycosides and (1→2)-, (1→3)-, and (1→4)-Linked<i>C</i>-Glycosides
作者:Dennis C. Koester、Ella Kriemen、Daniel B. Werz
DOI:10.1002/anie.201209697
日期:2013.3.4
Link! Two, three, four! A rapid and flexible synthesis of native (1→n)‐linked C‐disaccharides (n=2, 3, 4; left) is possible. The configuration of the pseudoanomeric carbon was readily established by an epoxidation/ring‐opening sequence. The synthesis of (1→n)‐linked 2‐deoxy‐C‐disaccharides (right) with high diastereoselectivity follows an even shorter route.
关联!二三四 可以快速灵活地合成天然的(1→ n)连接的C-二糖(n = 2、3、4;左图)。通过环氧化/开环序列可以很容易地确定假异头碳的构型。具有非对映选择性高的(1→ n)连接的2-脱氧C-二糖的合成(右)的路线更短。