Di-N-acetylneosamin-C | 19949-68-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: Di-N-acetylneosamin-C
• 英文别名: N-[[(2R,3S,4R,5R)-5-acetamido-3,4,6-trihydroxyoxan-2-yl]methyl]acetamide
• CAS: 19949-68-9；37077-16-0；60135-21-9
• 化学式: C₁₀H₁₈N₂O₆
• 分子量: 262.263
• InChiKey: MNLVXNNRRZIAQS-WWGUJXLXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -2.93
• 重原子数：
  18.0
• 可旋转键数：
  3.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  128.12
• 氢给体数：
  5.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  Di-N-acetylneosamin-C 在 3,5-二硝基水杨酸 作用下， 反应 0.25h， 生成
  参考文献：
  名称：

  Substrate specificity of galactokinase from Streptococcus pneumoniae TIGR4 towards galactose, glucose, and their derivatives

  摘要：

  Galactokinases (GalKs) have attracted significant research attention for their potential applications in the enzymatic synthesis of unique sugar phosphates. The galactokinase (GalKSpe4) cloned from Streptococcus pneumoniae TIGR4 presents a remarkably broad substrate range including 14 diverse natural and unnatural sugars. TLC and MS studies revealed that GalKSpe4 had relaxed activity towards galactose derivatives with modifications on the C-6, 4- or 2-positions. Additionally, GalKSpe4 can also tolerate glucose while glucose derivatives with modifications on the C-6, 4- or 2-positions were unacceptable. More interestingly, GalKSpe4 can phosphorylate L-mannose in moderate yield (43%), while other L-sugars such as L-Gal cannot be recognized by this enzyme. These results are very significant because there is rarely enzyme reported that can phosphorylate such uncommon substrates as L-mannose. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2012.03.095