5-(methoxycarbonyl)pentyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->3)-[2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-2-acetamido-6-O-acetyl-3-O-benzoyl-2-deoxy-β-D-glucopyranosyl-(1->6)]-2-acetamido-4-O-acetyl-2-deoxy-α-D-galactopyranoside | 1296782-08-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 5-(methoxycarbonyl)pentyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->3)-[2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-2-acetamido-6-O-acetyl-3-O-benzoyl-2-deoxy-β-D-glucopyranosyl-(1->6)]-2-acetamido-4-O-acetyl-2-deoxy-α-D-galactopyranoside
• 英文别名: [(2R,3S,4S,5R,6R)-6-[(2R,3R,4R,5R,6S)-5-acetamido-2-[[(2R,3R,4R,5S,6R)-3-acetamido-6-(acetyloxymethyl)-4-benzoyloxy-5-[(2S,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyoxan-2-yl]oxymethyl]-3-acetyloxy-6-(6-methoxy-6-oxohexoxy)oxan-4-yl]oxy-3,4,5-tribenzoyloxyoxan-2-yl]methyl benzoate
• CAS: 1296782-08-5
• 化学式: C₈₂H₉₂N₂O₃₄
• 分子量: 1649.63
• InChiKey: FIZYTSQTYHFLRT-YFBHMHMHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.5
• 重原子数：
  118
• 可旋转键数：
  47
• 环数：
  9.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  448
• 氢给体数：
  2
• 氢受体数：
  34

反应信息

• 作为反应物：
  描述：

  5-(methoxycarbonyl)pentyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->3)-[2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-2-acetamido-6-O-acetyl-3-O-benzoyl-2-deoxy-β-D-glucopyranosyl-(1->6)]-2-acetamido-4-O-acetyl-2-deoxy-α-D-galactopyranoside 在 sodium methylate 作用下， 以 甲醇 为溶剂， 反应 12.0h， 以92%的产率得到5-(methoxycarbonyl)pentyl β-D-galactopyranosyl-(1->3)-[β-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-β-D-glucopyranosyl-(1->6)]-2-acetamido-2-deoxy-α-D-galactopyranoside
  参考文献：
  名称：

  Synthesis of the carbohydrate moiety from the parasite Echinococcus multilocularis and their antigenicity against human sera

  摘要：

  Stereocontrolled syntheses of biotin-labeled oligosaccharide portions with a Gal beta 1-3GalNAc core of the Em2 glycoprotein antigen obtained from the parasite Echinococcus multilocularis have been accomplished. Trisaccharide Gal beta 1-3(GlcNAc beta 1-6)GalNAc alpha 1-R (G), tetrasaccharide Gal beta 1-3(Gal beta 1-4GlcNAc beta 1-6)GalNAc alpha 1-R (I) and pentasaccharide Gal beta 1-3(Gal alpha 1-4Gal beta 1-4GlcNAc beta 1-6)GalNAc alpha 1-R (K) (R = biotinylated probe) were synthesized by block synthesis by the use of 5-(methoxycarbonyl)pentyl 2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl-(1 -> 3)-2-azido-4-O-benzyl-2-deoxy-alpha-D-galactopyranoside as a common glycosyl acceptor. Moreover, linear trisaccharide Gal alpha 1-4Gal beta 1-3GalNAc alpha 1-R (H) and branched tetrasaccharide Gal alpha 1-4Gal beta 1-3(GlcNAc beta 1-6)GalNAc alpha 1-R (1) were synthesized by stepwise wise condensation. We examined the antigenicity of these five oligosaccharides by an enzyme linked immunosorbent assay (ELISA). Our results demonstrate that biotinylated oligosaccharides H, I and K show good serodiagnostic potential to detect infections caused by the parasite E. multilocularis. Among them the linear sequence Gal alpha 1-4Gal beta 1-3GalNAc alpha 1-R in oligosaccharide (H) appears to show the highest sensitivity (95%). Moreover, our study clarified the dominant carbohydrate epitope of Em2 antigen. (C) 2011 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2011.02.030
• 作为产物：
  描述：

  、 乙酸酐 在 吡啶 作用下， 以214 mg的产率得到5-(methoxycarbonyl)pentyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->3)-[2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-2-acetamido-6-O-acetyl-3-O-benzoyl-2-deoxy-β-D-glucopyranosyl-(1->6)]-2-acetamido-4-O-acetyl-2-deoxy-α-D-galactopyranoside
  参考文献：
  名称：

  Synthesis of the carbohydrate moiety from the parasite Echinococcus multilocularis and their antigenicity against human sera

  摘要：

  Stereocontrolled syntheses of biotin-labeled oligosaccharide portions with a Gal beta 1-3GalNAc core of the Em2 glycoprotein antigen obtained from the parasite Echinococcus multilocularis have been accomplished. Trisaccharide Gal beta 1-3(GlcNAc beta 1-6)GalNAc alpha 1-R (G), tetrasaccharide Gal beta 1-3(Gal beta 1-4GlcNAc beta 1-6)GalNAc alpha 1-R (I) and pentasaccharide Gal beta 1-3(Gal alpha 1-4Gal beta 1-4GlcNAc beta 1-6)GalNAc alpha 1-R (K) (R = biotinylated probe) were synthesized by block synthesis by the use of 5-(methoxycarbonyl)pentyl 2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl-(1 -> 3)-2-azido-4-O-benzyl-2-deoxy-alpha-D-galactopyranoside as a common glycosyl acceptor. Moreover, linear trisaccharide Gal alpha 1-4Gal beta 1-3GalNAc alpha 1-R (H) and branched tetrasaccharide Gal alpha 1-4Gal beta 1-3(GlcNAc beta 1-6)GalNAc alpha 1-R (1) were synthesized by stepwise wise condensation. We examined the antigenicity of these five oligosaccharides by an enzyme linked immunosorbent assay (ELISA). Our results demonstrate that biotinylated oligosaccharides H, I and K show good serodiagnostic potential to detect infections caused by the parasite E. multilocularis. Among them the linear sequence Gal alpha 1-4Gal beta 1-3GalNAc alpha 1-R in oligosaccharide (H) appears to show the highest sensitivity (95%). Moreover, our study clarified the dominant carbohydrate epitope of Em2 antigen. (C) 2011 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2011.02.030