ethyl 3-O-acetyl-4-azido-2,4,6-trideoxy-2-tetrachlorophthalimido-1-thio-β-D-galactopyranoside | 280569-38-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: ethyl 3-O-acetyl-4-azido-2,4,6-trideoxy-2-tetrachlorophthalimido-1-thio-β-D-galactopyranoside
• 英文别名: [(2S,3R,4R,5S,6R)-5-azido-2-ethylsulfanyl-6-methyl-3-(4,5,6,7-tetrachloro-1,3-dioxoisoindol-2-yl)oxan-4-yl] acetate
• CAS: 280569-38-2
• 化学式: C₁₈H₁₆Cl₄N₄O₅S
• 分子量: 542.227
• InChiKey: HPFGNMYXBJTKRZ-JVJYRCIPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.6
• 重原子数：
  32
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  113
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  ethyl 3-O-acetyl-4-azido-2,4,6-trideoxy-2-tetrachlorophthalimido-1-thio-β-D-galactopyranoside 、 methyl 3-O-benzyl-6-O-chloroacetyl-2-deoxy-2-tetrachlorophthalimido-α-D-altropyranoside 在 N-碘代丁二酰亚胺 、 三氟甲磺酸 、 4 A molecular sieve 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 0.33h， 以53%的产率得到methyl (3-O-acetyl-4-azido-2,4,6-trideoxy-2-tetrachlorophthalimido-β-D-galactopyranosyl)-(1->4)-3-O-benzyl-6-O-chloroacetyl-2-deoxy-2-tetrachlorophthalimido-α-D-altropyranoside
  参考文献：
  名称：

  Synthetic Studies Towards theO-Specific Polysaccharide ofShigella Sonnei

  摘要：

  Synthetic routes are described to zwitter-ionic disaccharides that are diastereoisomerically related to frame-shifted repeating units of the title polysaccharide that contains 2-acetamido-4-amino-2,4,6-trideoxy-D-galactose and 2-acetamido-2-deoxy-L-altruronic acid. The intermediates corresponding to the trideoxygalactose residue feature acylamino functions at C-2 and an azido group at C-4. Best results were obtained with N-phthaloyl- and N-trichloroacetyl-protected derivatives. The intermediates corresponding to the uronic acid residue were either a D-altruronic acid-derived acceptor or a D-altrose-derived donor in which C-6 was oxidized after disaccharide formation.

  DOI：

  10.1080/07328300008544079
• 作为产物：
  描述：

  3-O-acetyl-4-azido-2,4,6-trideoxy-2-phthalimido-1-thio-β-D-galactopyranoside 在 吡啶 、 乙二胺 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 反应 3.25h， 生成 ethyl 3-O-acetyl-4-azido-2,4,6-trideoxy-2-tetrachlorophthalimido-1-thio-β-D-galactopyranoside
  参考文献：
  名称：

  Synthetic Studies Towards theO-Specific Polysaccharide ofShigella Sonnei

  摘要：

  Synthetic routes are described to zwitter-ionic disaccharides that are diastereoisomerically related to frame-shifted repeating units of the title polysaccharide that contains 2-acetamido-4-amino-2,4,6-trideoxy-D-galactose and 2-acetamido-2-deoxy-L-altruronic acid. The intermediates corresponding to the trideoxygalactose residue feature acylamino functions at C-2 and an azido group at C-4. Best results were obtained with N-phthaloyl- and N-trichloroacetyl-protected derivatives. The intermediates corresponding to the uronic acid residue were either a D-altruronic acid-derived acceptor or a D-altrose-derived donor in which C-6 was oxidized after disaccharide formation.

  DOI：

  10.1080/07328300008544079