methyl (2S,4S,5R,6R)-5-acetamido-2-[(2R,3S,4S,5R)-3-[(2S,3R,4R,5R,6R)-3-acetamido-4,5-diacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-5-benzoyloxy-2-(benzoyloxymethyl)-6-(2,2,2-trichloroethanimidoyl)oxyoxan-4-yl]oxy-4-acetyloxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate | 934682-10-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl (2S,4S,5R,6R)-5-acetamido-2-[(2R,3S,4S,5R)-3-[(2S,3R,4R,5R,6R)-3-acetamido-4,5-diacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-5-benzoyloxy-2-(benzoyloxymethyl)-6-(2,2,2-trichloroethanimidoyl)oxyoxan-4-yl]oxy-4-acetyloxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate
• CAS: 934682-10-7
• 化学式: C₅₆H₆₆Cl₃N₃O₂₈
• 分子量: 1335.5
• InChiKey: NPMREXPSCVWNKO-FRZFAVRNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  90
• 可旋转键数：
  35
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  400
• 氢给体数：
  3
• 氢受体数：
  29

反应信息

• 作为反应物：
  描述：

  methyl (2S,4S,5R,6R)-5-acetamido-2-[(2R,3S,4S,5R)-3-[(2S,3R,4R,5R,6R)-3-acetamido-4,5-diacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-5-benzoyloxy-2-(benzoyloxymethyl)-6-(2,2,2-trichloroethanimidoyl)oxyoxan-4-yl]oxy-4-acetyloxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate 、 4-methoxyphenyl 2-acetamido-4,6-di-O-acetyl-2-deoxy-β-D-galactopyranosyl-(1→4)-2,3,6-tri-O-benzyl-β-D-galactopyranoside 在 三氟甲磺酸三甲基硅酯 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以75%的产率得到4-methoxyphenyl 2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-galactopyranosyl-(1→4)-{[methyl5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylonate]-(2→3)}-2,6-di-O-benzoyl-β-D-galactopyranosyl-(1→3)-2-acetamido-4,6-di-O-acetyl-2-deoxy-β-Dgalactopyranosyl-(1→4)-2,3,6-tri-O-benzyl-β-D-galactopyranoside
  参考文献：
  名称：

  扩展葡萄糖神经酰胺盒方法：在神经节苷脂 GalNAc-GM1b 全合成中的应用。

  摘要：

  研究了用于有效糖脂合成的新型环状葡萄糖神经酰胺盒受体的开发。选择对甲氧基苄基 (PMB) 基团作为葡萄糖残基 C2 和 C3 处的保护基团，目的是提高盒式受体的功能。PMB 基团的选择导致 β 选择性的丧失，这通过使用适当的系链来控制空间排列和腈溶剂效应得到纠正。为了研究接头结构对分子内糖基化β-选择性的影响，设计并制备了几种用于连接葡萄糖和神经酰胺部分的接头，即琥珀酰、戊二酰、二甲基丙二酰和邻苯二甲酰酯。琥珀酸酯接头是访问盒形式的最佳选择。

  DOI：

  10.3390/molecules181215153
• 作为产物：
  描述：

  在 ammonium cerium (IV) nitrate 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 二氯甲烷 、 水 、 甲苯 、 乙腈 为溶剂， 生成 methyl (2S,4S,5R,6R)-5-acetamido-2-[(2R,3S,4S,5R)-3-[(2S,3R,4R,5R,6R)-3-acetamido-4,5-diacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-5-benzoyloxy-2-(benzoyloxymethyl)-6-(2,2,2-trichloroethanimidoyl)oxyoxan-4-yl]oxy-4-acetyloxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate
  参考文献：
  名称：

  神经节苷脂GalNAc-GD1a的第一个全合成，吉兰-巴雷综合征中自身抗体的靶分子

  摘要：

  描述了神经节苷脂GalNAc-GD1a的首次合成，其特征在于有效的聚糖装配和环状葡萄糖基神经酰胺作为神经节苷脂合成的通用单元。尽管神经节苷脂GalNAc-GD1a最初是作为脑神经节苷脂发现的，但后来发现针对GalNAc-GD1a的IgG自身抗体与人类外周神经疾病-格林-巴雷综合征（Guillain-Barrésyndrome）密切相关，后者是全球急性弛缓性麻痹的最常见原因。在这项研究中，带有两个唾液酸残基的特征性六糖部分是通过使用易于获得的GM2核心单元作为通用单元而有效合成的。寡糖和神经酰胺部分的潜在困难偶联是通过使用环状葡萄糖基神经酰胺作为六糖部分的偶联伴侣进行的，从而成功地提供了目标化合物的框架。整体脱保护得到了均质的神经节苷脂GalNAc-GD1a。酶联免疫吸附试验显示，患有格林-巴利综合征的患者的血清与天然和合成的GalNAc-GD1a均发生了反应。

  DOI：

  10.1002/chem.201003357

文献信息

• A First Total Synthesis of a Hybrid‐Type Ganglioside Associated with Amyotrophic Lateral Sclerosis‐Like Disorder
  作者：Shinya Nakashima、Hiromune Ando、Akihiro Imamura、Nobuhiro Yuki、Hideharu Ishida、Makoto Kiso

  DOI：10.1002/chem.201002184

  日期：2011.1.10

  The hybrid ganglioside X1, which was identified in the bovine brain, was synthesized for the first time. Ganglioside X1 is believed to be involved in the development of amyotrophic lateral sclerosis‐like disorders in patients with neurological disorders after treatment with bovine brain gangliosides. A convergent approach using two branched glycan units, the GM2‐core trisaccharide and the lacto‐ganglio

  首次在牛脑中鉴定出了混合神经节苷脂X1。神经节苷脂X1被认为是在用牛脑神经节苷脂治疗后患有神经系统疾病的患者中发生肌萎缩性侧索硬化样疾病的发展。使用两个支链的聚糖单位，GM2核三糖和乳糖ganglio四糖的会聚方法，有效地提供神经节苷脂X1，将其用神经酰胺部分，以产生被保护的神经节苷脂偶联X1的高度支化七糖部分。整体脱保护递送了均质的神经节苷脂X1，来自患者的血清与之反应。
• A cyclic glucosyl ceramide acceptor as a versatile building block for complex ganglioside synthesis
  作者：Kohki Fujikawa、Tomohiro Nohara、Akihiro Imamura、Hiromune Ando、Hideharu Ishida、Makoto Kiso

  DOI：10.1016/j.tetlet.2009.12.121

  日期：2010.2

  A cyclic glucosyl ceramide (GlcCer) acceptor has been developed as a versatile building block for the synthesis of complex ganglioside. A macrocyclic GlcCer acceptor, which was the product of intramolecular glycosylation between glucose and ceramide, exhibited high reactivity during the coupling reactions with a variety of complex oligosaccharyl donors, thereby furnishing the corresponding ganglioside

  环状葡萄糖基神经酰胺（GlcCer）受体已被开发为合成复杂神经节苷脂的通用构建基块。葡萄糖和神经酰胺之间分子内糖基化的产物大环GlcCer受体在与各种复杂的寡糖供体的偶联反应中表现出高反应活性，从而以高收率提供了相应的神经节苷脂骨架。
• Differential Receptor Binding Affinities of Influenza Hemagglutinins on Glycan Arrays
  作者：Hsin-Yu Liao、Che-Hsiung Hsu、Shih-Chi Wang、Chi-Hui Liang、Hsin-Yung Yen、Ching-Yao Su、Chien-Hung Chen、Jia-Tsrong Jan、Chien-Tai Ren、Chung-Hsuan Chen、Ting-Jen R. Cheng、Chung-Yi Wu、Chi-Huey Wong

  DOI：10.1021/ja104657b

  日期：2010.10.27

  A library of 27 sialosides, including seventeen 2,3-linked and ten 2,6-linked glycans, has been prepared to construct a glycan array and used to profile the binding specificity of different influenza hemagglutinins (HA) subtypes, especially from the 2009 swine-originated H1N1 and seasonal influenza viruses. It was found that the HAs from the 2009 H1N1 and the seasonal Brisbane strain share similar binding profiles yet different binding affinities toward various alpha 2,6 sialosides. Analysis of the binding profiles of different HA subtypes indicate that a minimum set of 5 oligosaccharides can be used to differentiate influenza H1, H3, H5, H7, and H9 subtypes. In addition, the glycan array was used to profile the binding pattern of different influenza viruses. It was found that most binding patterns of viruses and HA proteins are similar and that glycosylation at Asn27 is essential for receptor binding.