methyl (methyl 5-acetamido-4,7,8-tri-O-acetyl-9-azido-3,5,9-trideoxy-2-thio-D-glycero-α-D-galacto-2-nonulopyranosid)onate | 143070-98-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl (methyl 5-acetamido-4,7,8-tri-O-acetyl-9-azido-3,5,9-trideoxy-2-thio-D-glycero-α-D-galacto-2-nonulopyranosid)onate
• 英文别名: methyl (2S,4S,5R,6R)-5-acetamido-4-acetyloxy-6-[(1R,2R)-1,2-diacetyloxy-3-azidopropyl]-2-methylsulfanyloxane-2-carboxylate
• CAS: 143070-98-8
• 化学式: C₁₉H₂₈N₄O₁₀S
• 分子量: 504.518
• InChiKey: DMNBKOVZYZBMND-DPIHELBLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  34
• 可旋转键数：
  14
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.74
• 拓扑面积：
  183
• 氢给体数：
  1
• 氢受体数：
  13

反应信息

• 作为反应物：
  描述：

  二碳酸二叔丁酯 、 methyl (methyl 5-acetamido-4,7,8-tri-O-acetyl-9-azido-3,5,9-trideoxy-2-thio-D-glycero-α-D-galacto-2-nonulopyranosid)onate 、 乙酸酐 在 4-二甲氨基吡啶 、 一水合肼 、 吡啶 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 39.0h， 以76%的产率得到methyl (methyl 5-tert-butyloxycarbonylamino-4,7,8-tri-O-acetyl-9-azido-3,5,9-trideoxy-2-thio-D-glycero-α-D-galacto-2-nonulopyranosid)onate
  参考文献：
  名称：

  Low Molecular Weight Antagonists of the Myelin-Associated Glycoprotein: Synthesis, Docking, and Biological Evaluation

  摘要：

  The Injured adult mammalian central nervous system Is all inhibitory environment for axon regeneration due to specific inhibitors,among them the myelin-associated glycoprotein (MAG), a member of the Siglec family (sialic-acid binding immunoglobulin-like lectin). In earlier Studies, we identified the lead structure5, which shows a 250-fold improved in vitro affinity for MAG compared to the tetrasaccharide binding epitope of GQ1b alpha (1), the best physiological MAG ligand described so far. By modifying the 2- and 5-position, the affinity of 5 could be further improved to the nanomolar range (-> 19a). Docking Studies to a homology model of MAG allowed the rationalization of the experimental binding properties. Finally, pharmacokinetic parameters (stability in the cerebrospinal fluid, logD and Permeation through the BBB) indicate the drug-like properties of the high-affinity antagonist 19a.

  DOI：

  10.1021/jm901517k
• 作为产物：
  描述：

  methyl (methyl 5-acetamido-9-azido-3,5,9-trideoxy-2-thio-D-glycero-α-D-galacto-2-nonulopyranosid)onate 、 乙酸酐 在 吡啶 、 4-二甲氨基吡啶 作用下， 以73%的产率得到methyl (methyl 5-acetamido-4,7,8-tri-O-acetyl-9-azido-3,5,9-trideoxy-2-thio-D-glycero-α-D-galacto-2-nonulopyranosid)onate
  参考文献：
  名称：

  Low Molecular Weight Antagonists of the Myelin-Associated Glycoprotein: Synthesis, Docking, and Biological Evaluation

  摘要：

  The Injured adult mammalian central nervous system Is all inhibitory environment for axon regeneration due to specific inhibitors,among them the myelin-associated glycoprotein (MAG), a member of the Siglec family (sialic-acid binding immunoglobulin-like lectin). In earlier Studies, we identified the lead structure5, which shows a 250-fold improved in vitro affinity for MAG compared to the tetrasaccharide binding epitope of GQ1b alpha (1), the best physiological MAG ligand described so far. By modifying the 2- and 5-position, the affinity of 5 could be further improved to the nanomolar range (-> 19a). Docking Studies to a homology model of MAG allowed the rationalization of the experimental binding properties. Finally, pharmacokinetic parameters (stability in the cerebrospinal fluid, logD and Permeation through the BBB) indicate the drug-like properties of the high-affinity antagonist 19a.

  DOI：

  10.1021/jm901517k