methyl (2S,3S,4S,5R)-3-acetyloxy-6-[[(2R,3R,4S,5R,6S)-6-methoxy-3,4,5-tris(phenylmethoxy)oxan-2-yl]methoxy]-4,5-bis(phenylmethoxy)oxane-2-carboxylate | 1352561-84-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl (2S,3S,4S,5R)-3-acetyloxy-6-[[(2R,3R,4S,5R,6S)-6-methoxy-3,4,5-tris(phenylmethoxy)oxan-2-yl]methoxy]-4,5-bis(phenylmethoxy)oxane-2-carboxylate
• CAS: 1352561-84-2
• 化学式: C₅₁H₅₆O₁₃
• 分子量: 876.998
• InChiKey: OIKUSVKBOBHJBF-ZUOPOYJPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.6
• 重原子数：
  64
• 可旋转键数：
  23
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.37
• 拓扑面积：
  136
• 氢给体数：
  0
• 氢受体数：
  13

反应信息

• 作为产物：
  描述：

  在 吡啶 、 N-碘代丁二酰亚胺 、 三氟甲磺酸 、 C₂₃H₂₅N₃O₆S 、 potassium carbonate 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 3.5h， 生成 methyl (2S,3S,4S,5R)-3-acetyloxy-6-[[(2R,3R,4S,5R,6S)-6-methoxy-3,4,5-tris(phenylmethoxy)oxan-2-yl]methoxy]-4,5-bis(phenylmethoxy)oxane-2-carboxylate
  参考文献：
  名称：

  Exploring and Exploiting the Reactivity of Glucuronic Acid Donors

  摘要：

  The relative reactivity of glucuronic acid esters was established in a series of competition experiments, in which two thioglucoside and/or thioglucuronic acid ester donors competed for a limited amount of activator (NIS-TfOH). Although glucuronic add esters are often considered to be of very low reactivity, the series of competition reactions revealed that the reactivity of the glucuronic acid esters studied is sufficient to provide productive glycosylation reactions. The latter is illustrated in the synthesis of two Streptococcus pneumoniae trisaccharides, in which the applicability of the two similarly protected frame-shifted thiociisaccharide donors, Glc-GlcA and GlcA-Glc, were compared. The Glc-GlcA disaccharide, featuring the glucuronic acid donor moiety, proved to be the most productive in the assembly of a protected S. pneumoniae trisaccharide.

  DOI：

  10.1021/jo201586r