N-[2-[5-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoylamino]ethyl]-6-[(2S,3R,4R,5R,6R)-3-acetamido-6-[[(2R,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]-4-[(2R,3R,4R,5R,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxyoxan-2-yl]oxyhexanamide | 1296782-27-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: N-[2-[5-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoylamino]ethyl]-6-[(2S,3R,4R,5R,6R)-3-acetamido-6-[[(2R,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]-4-[(2R,3R,4R,5R,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxyoxan-2-yl]oxyhexanamide
• CAS: 1296782-27-8
• 化学式: C₄₆H₇₈N₆O₂₄S
• 分子量: 1131.22
• InChiKey: MUMVFSUVJQVODG-BWIMXZIWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -7.8
• 重原子数：
  77
• 可旋转键数：
  27
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  479
• 氢给体数：
  17
• 氢受体数：
  25

反应信息

• 作为产物：
  描述：

  5-(methoxycarbonyl)pentyl α-D-galactopyranosyl-(1->4)-β-D-galactopyranosyl-(1->3)-[2-acetamido-2-deoxy-β-D-glucopyranosyl-(1->6)]-2-acetamido-2-deoxy-α-D-galactopyranoside 在 N,N-二异丙基乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 60.0h， 生成 N-[2-[5-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoylamino]ethyl]-6-[(2S,3R,4R,5R,6R)-3-acetamido-6-[[(2R,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]-4-[(2R,3R,4R,5R,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxyoxan-2-yl]oxyhexanamide
  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

文献信息

• Synthesis of the carbohydrate moiety from the parasite Echinococcus multilocularis and their antigenicity against human sera
  作者：Akihiko Koizumi、Kimiaki Yamano、Frank Schweizer、Tadahiro Takeda、Fumiyuki Kiuchi、Noriyasu Hada

  DOI：10.1016/j.ejmech.2011.02.030

  日期：2011.5

  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.