2-(trimethylsilyl)ethyl 2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->3)-2-azido-4,6-O-benzylidene-2-deoxy-α-D-galactopyranoside | 1163124-17-1

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2-(trimethylsilyl)ethyl 2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->3)-2-azido-4,6-O-benzylidene-2-deoxy-α-D-galactopyranoside
• CAS: 1163124-17-1
• 化学式: C₃₂H₄₅N₃O₁₄Si
• 分子量: 723.807
• InChiKey: OWZFMDXJXDLPNC-CSCACHIVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.33
• 重原子数：
  50.0
• 可旋转键数：
  13.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.69
• 拓扑面积：
  209.34
• 氢给体数：
  0.0
• 氢受体数：
  15.0

反应信息

• 作为反应物：
  描述：

  2-(trimethylsilyl)ethyl 2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->3)-2-azido-4,6-O-benzylidene-2-deoxy-α-D-galactopyranoside 在 三乙基硅烷 、 二氯苯酚溴酯 作用下， 以 二氯甲烷 为溶剂， 反应 0.08h， 以73%的产率得到2-(trimethylsilyl)ethyl 2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->3)-2-azido-4-O-benzyl-2-deoxy-α-D-galactopyranoside
  参考文献：
  名称：

  Synthetic studies on the carbohydrate moiety of the antigen from the parasite Echinococcusmultilocularis

  摘要：

  Stereocontrolled syntheses of branched tri-, tetra-, and pentasaccharides displaying a Gal beta 1 -> 3GalNAc core in the glycan portion of the glycoprotein antigen from the parasite Echinococcus multilocularis have been accomplished. Trisaccharide Gal beta 1 -> 3(GlcNAc beta 1 -> 6)GalNAc alpha 1-OR (A). tetrasaccharide Gal beta 1 -> 3(Gal beta 1 -> 4Gal beta 1 -> 6)GalNac alpha 1-OR(D), and pentasaccharides Gal beta 1 -> 3(Gal beta 1 -> 4Gal beta 1 -> 4Gl cNAc beta 1-6)GalNAc alpha 1-OR (E) and Gal beta 1-3(Gal alpha 1 -> 4Gal alpha 1 -> 4Gal alpha 1 -> 6)GalNAc alpha 1-OR) (F) (R = 2(trimethylsilyl)ethyl) were synthesized by block synthesis. The disaccharide 2-(trimethylsilyl)ethyl 2,3,4,6-tetra-O-acetyl-P-D-galactopyranosyl-(1 -> 3)-2-azido-4-O-benzyl-2-deoxy-alpha-D-galactopyranoside served as a common glycosyl acceptor in the synthesis of the branched oligosaccharicles. Moreover, linear trisaccharide Gal beta 1 -> Gal beta 1 -> 3GalNac alpha 1-OR (B) and branched tetrasaccharide Gal beta 1 -> Gal beta 1 -> 3(GalNac beta 1 -> 6)GalNac alpha 1-OR (C) were synthesized by stepwise condensation. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2009.02.019
• 作为产物：
  描述：

  2-(trimethylsilyl)ethyl 2-azido-4,6-O-benzylidene-2-deoxy-α-D-galactopyranoside 、 2,3,4,6-tetra-O-acetyl-D-galactopyranosyl trichloroacetimidate 在 三氟甲磺酸三甲基硅酯 作用下， 以 二氯甲烷 为溶剂， 以90%的产率得到2-(trimethylsilyl)ethyl 2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->3)-2-azido-4,6-O-benzylidene-2-deoxy-α-D-galactopyranoside
  参考文献：
  名称：

  Synthetic studies on the carbohydrate moiety of the antigen from the parasite Echinococcusmultilocularis

  摘要：

  Stereocontrolled syntheses of branched tri-, tetra-, and pentasaccharides displaying a Gal beta 1 -> 3GalNAc core in the glycan portion of the glycoprotein antigen from the parasite Echinococcus multilocularis have been accomplished. Trisaccharide Gal beta 1 -> 3(GlcNAc beta 1 -> 6)GalNAc alpha 1-OR (A). tetrasaccharide Gal beta 1 -> 3(Gal beta 1 -> 4Gal beta 1 -> 6)GalNac alpha 1-OR(D), and pentasaccharides Gal beta 1 -> 3(Gal beta 1 -> 4Gal beta 1 -> 4Gl cNAc beta 1-6)GalNAc alpha 1-OR (E) and Gal beta 1-3(Gal alpha 1 -> 4Gal alpha 1 -> 4Gal alpha 1 -> 6)GalNAc alpha 1-OR) (F) (R = 2(trimethylsilyl)ethyl) were synthesized by block synthesis. The disaccharide 2-(trimethylsilyl)ethyl 2,3,4,6-tetra-O-acetyl-P-D-galactopyranosyl-(1 -> 3)-2-azido-4-O-benzyl-2-deoxy-alpha-D-galactopyranoside served as a common glycosyl acceptor in the synthesis of the branched oligosaccharicles. Moreover, linear trisaccharide Gal beta 1 -> Gal beta 1 -> 3GalNac alpha 1-OR (B) and branched tetrasaccharide Gal beta 1 -> Gal beta 1 -> 3(GalNac beta 1 -> 6)GalNac alpha 1-OR (C) were synthesized by stepwise condensation. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2009.02.019