3-O-benzoyl-4,6-O-benzylidene-1,2-dideoxy-D-glucopyranose | 438216-14-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃二恶英
• 英文名称: 3-O-benzoyl-4,6-O-benzylidene-1,2-dideoxy-D-glucopyranose
• 英文别名: D-arabino-Hexitol, 1,5-anhydro-2-deoxy-4,6-O-[(R)-phenylmethylene]-, benzoate；[(2R,4aR,8R,8aS)-2-phenyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-8-yl] benzoate
• CAS: 438216-14-9
• 化学式: C₂₀H₂₀O₅
• 分子量: 340.376
• InChiKey: NABPPJHTPJECCO-FTEYMNFISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  25
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  54
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  3-O-benzoyl-4,6-O-benzylidene-1,2-dideoxy-D-glucopyranose 在 盐酸 、 4 A molecular sieve 、 sodium cyanoborohydride 、 1,1,3,3-四甲基脲 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 为溶剂， 反应 24.0h， 生成 (2,3,4-tri-O-benzyl-α-L-fucopyranosyl)-O-(1->4)-3-O-benzoyl-6-O-benzyl-1,2,-dideoxy-D-glucopyranose
  参考文献：
  名称：

  Synthesis of a Potent Antagonist of E-Selectin

  摘要：

  A synthesis of an antagonist of E-selectin previously reported by a group at Novartis Pharma in Basel is described. An important feature involves the formation of an ether linkage based on a Rh-II-catalyzed reaction. Stereocontrolled glycosylations rely on the anomeric activation of 2-pyridylthio carbonate as leaving group for the attachment of beta-D-galactopyranosyl and alpha-L-fucopyranosyl units on a common 1,5-anhydro D-glucitol scaffold.

  DOI：

  10.1021/jo0110956
• 作为产物：
  描述：

  1,5-Anhydro-2-deoxy-4,6-O-(phenylmethylene)-D-arabino-hexopyranoside 、 苯甲酰氯 在 4-二甲氨基吡啶 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以97%的产率得到3-O-benzoyl-4,6-O-benzylidene-1,2-dideoxy-D-glucopyranose
  参考文献：
  名称：

  Synthesis of a Potent Antagonist of E-Selectin

  摘要：

  A synthesis of an antagonist of E-selectin previously reported by a group at Novartis Pharma in Basel is described. An important feature involves the formation of an ether linkage based on a Rh-II-catalyzed reaction. Stereocontrolled glycosylations rely on the anomeric activation of 2-pyridylthio carbonate as leaving group for the attachment of beta-D-galactopyranosyl and alpha-L-fucopyranosyl units on a common 1,5-anhydro D-glucitol scaffold.

  DOI：

  10.1021/jo0110956

文献信息

• Synthesis of a Potent Antagonist of E-Selectin
  作者：Stephen Hanessian、Vincent Mascitti、Olivier Rogel

  DOI：10.1021/jo0110956

  日期：2002.5.1

  A synthesis of an antagonist of E-selectin previously reported by a group at Novartis Pharma in Basel is described. An important feature involves the formation of an ether linkage based on a Rh-II-catalyzed reaction. Stereocontrolled glycosylations rely on the anomeric activation of 2-pyridylthio carbonate as leaving group for the attachment of beta-D-galactopyranosyl and alpha-L-fucopyranosyl units on a common 1,5-anhydro D-glucitol scaffold.