ethyl 2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl-(1->3)-2-O-benzyl-4,6-O-benzylidene-α-D-mannopyranosyl-(1->2)-[2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl-(1->3)]-4,6-O-benzylidene-1-thio-α-D-mannopyranoside | 282088-50-0

• 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: ethyl 2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl-(1->3)-2-O-benzyl-4,6-O-benzylidene-α-D-mannopyranosyl-(1->2)-[2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl-(1->3)]-4,6-O-benzylidene-1-thio-α-D-mannopyranoside
• 英文别名: [(2R)-2-[(2S,3S,4R,5S)-5-[[(2R,4aR,6R,7S,8S,8aR)-6-[[(2R,4aR,6R,7S,8S,8aR)-8-[(2S,3R,4S,5S)-3,4-diacetyloxy-5-[(1R)-1,2-diacetyloxyethyl]oxolan-2-yl]oxy-6-ethylsulfanyl-2-phenyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-yl]oxy]-2-phenyl-7-phenylmethoxy-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-8-yl]oxy]-3,4-diacetyloxyoxolan-2-yl]-2-acetyloxyethyl] acetate
• CAS: 282088-50-0
• 化学式: C₆₃H₇₆O₂₈S
• 分子量: 1313.35
• InChiKey: OQZITPBQLLIKEH-ANOZWVOFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  92
• 可旋转键数：
  33
• 环数：
  9.0
• sp3杂化的碳原子比例：
  0.59
• 拓扑面积：
  347
• 氢给体数：
  0
• 氢受体数：
  29

反应信息

• 作为反应物：
  描述：

  ethyl 2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl-(1->3)-2-O-benzyl-4,6-O-benzylidene-α-D-mannopyranosyl-(1->2)-[2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl-(1->3)]-4,6-O-benzylidene-1-thio-α-D-mannopyranoside 在 palladium on activated charcoal 氨 、 氢气 、 溶剂黄146 作用下， 以 甲醇 为溶剂， 反应 20.0h， 生成 ethyl β-D-galactofuranosyl-(1->3)-α-D-mannopyranosyl-(1->2)-[β-D-galactofuranosyl-(1->3)]-1-thio-α-D-mannopyranoside
  参考文献：
  名称：

  Synthesis of galactofuranosyl-containing oligosaccharides corresponding to the glycosylinositolphospholipid of Trypanosomacruzi

  摘要：

  The oligosaccharide beta-D-Ga1f-(1-->3)-alpha-D-Manp-(1-->2)-[beta-D-Ga1f-(1-->3)]-alpha-D-Manp-(1-->2)-alpha-D-Manp corresponds to the terminal end of the glycosylinositolphospholipid oligosaccharide of the protozoan Trypanosoma cruzi, the causative agent of Chagas' disease. Syntheses of methyl or ethylthio glycosides of the terminal disaccharide, trisaccharide, tetrasaccharide, and pentasaccharide corresponding to this structure are described. These syntheses employ the selective activation of a phenyl 1-selenogalactofuranoside or a phenyl 1-selenomannopyranoside donor over ethyl 1-thioglycoside accepters with NIS-TfOH. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(00)00007-0
• 作为产物：
  描述：

  ethyl 3-O-benzoyl-4,6-O-benzylidene-1-thio-α-D-mannopyranoside 在 N-碘代丁二酰亚胺 、 三氟甲磺酸 、 4 A molecular sieve 、 sodium methylate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 2.17h， 生成 ethyl 2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl-(1->3)-2-O-benzyl-4,6-O-benzylidene-α-D-mannopyranosyl-(1->2)-[2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl-(1->3)]-4,6-O-benzylidene-1-thio-α-D-mannopyranoside
  参考文献：
  名称：

  Synthesis of galactofuranosyl-containing oligosaccharides corresponding to the glycosylinositolphospholipid of Trypanosomacruzi

  摘要：

  The oligosaccharide beta-D-Ga1f-(1-->3)-alpha-D-Manp-(1-->2)-[beta-D-Ga1f-(1-->3)]-alpha-D-Manp-(1-->2)-alpha-D-Manp corresponds to the terminal end of the glycosylinositolphospholipid oligosaccharide of the protozoan Trypanosoma cruzi, the causative agent of Chagas' disease. Syntheses of methyl or ethylthio glycosides of the terminal disaccharide, trisaccharide, tetrasaccharide, and pentasaccharide corresponding to this structure are described. These syntheses employ the selective activation of a phenyl 1-selenogalactofuranoside or a phenyl 1-selenomannopyranoside donor over ethyl 1-thioglycoside accepters with NIS-TfOH. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(00)00007-0