α-D-mannopyranosyl-(1->2)-α-D-mannopyranosyl-(1->6)-α-D-mannopyranosyl-(1->4)-2-amino-2-deoxy-α-D-glucopyranosyl-(1->6)-D-myo-inositol | 123487-64-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: α-D-mannopyranosyl-(1->2)-α-D-mannopyranosyl-(1->6)-α-D-mannopyranosyl-(1->4)-2-amino-2-deoxy-α-D-glucopyranosyl-(1->6)-D-myo-inositol
• 英文别名: O-(α-D-mannopyranosyl)-(1-2)-O-(α-D-mannopyranosyl)-(1-6)-O-(α-D-mannopyranosyl)-(1-4)-O-(2-amino-2-deoxy-α-D-glucopyranosyl)-(1-6)-D-myo-inositol
• CAS: 123487-64-9
• 化学式: C₃₀H₅₃NO₂₅
• 分子量: 827.743
• InChiKey: VGONZQFBNXJOFJ-WYVXFWAPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -12.57
• 重原子数：
  56.0
• 可旋转键数：
  12.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  443.77
• 氢给体数：
  18.0
• 氢受体数：
  26.0

反应信息

• 作为产物：
  描述：

  在 palladium on activated charcoal 甲酸 作用下， 以 甲醇 为溶剂， 反应 2.0h， 生成 α-D-mannopyranosyl-(1->2)-α-D-mannopyranosyl-(1->6)-α-D-mannopyranosyl-(1->4)-2-amino-2-deoxy-α-D-glucopyranosyl-(1->6)-D-myo-inositol
  参考文献：
  名称：

  Studies Related to Synthesis of Glycophosphatidylinositol Membrane-Bound Protein Anchors. 6. Convergent Assembly of Subunits

  摘要：

  Glycophosphatidylinositol anchors of membrane-bound proteins are thought to comprise a common pentasaccharide core containing mannan, glucosamine, and inositol residues. A synthetic route to this core is described. In addition, the complete heptasaccharide moiety of the rat brain Thy-1 membrane anchor, the first mammalian membrane anchor to be characterized, has been synthesized. In the case of the Thy-1 anchor, the synthetic plan is based on three building blocks comprising glucosamine-inositol, galactosamine-mannose, and trimannan residues. Although glycosyl donors other than n-pentenyl glycosides (NPGs) have been used in preparing each of these building blocks, the final assembly of the heptasaccharide utilizes NPGs as the only glycosyl donors. The mildness of the conditions for these coupling reactions has allowed us to make provisions for subsequent installation of the three phosphodiester units.

  DOI：

  10.1021/ja00110a011

文献信息

• n-Pentenyl glycosides facilitate a stereoselective synthesis of the pentasaccharide core of the protein membrane anchor found in Trypanosoma brucei
  作者：David R. Mootoo、Peter Konradsson、Bert Fraser-Reid

  DOI：10.1021/ja00204a049

  日期：1989.10
• Inositolphosphoglycan Mediators: An Effective Synthesis of the Conserved Linear GPI Anchor Structure*
  作者：Javier López‐Prados、Manuel Martín‐Lomas

  DOI：10.1081/car-200066956

  日期：2005.8.1

  An effective new preparative synthesis of the conserved linear pseudopentasaccharide structure of the GPI anchors and of the full GPI structure has been carried out that has permitted obtaining both molecules in sufficient quantities as to perform further structural and biologic studies. The synthesis involves a 3 + 2 block synthesis strategy in which a conveniently protected Man alpha(1 -> 4) GlcN(3) alpha(1 -> 6) myo-Ins building block, previously used in the synthesis of inositolphosphoglycan (IPG) mediators, is glycosylated with a protected Man alpha(1 -> 2) Man trichloroacetimidate.