methyl (2S,3S,4S,5R,6R)-3,4,5-triacetyloxy-6-[[(2R,3S,4S,5R)-3,4,5,6-tetraacetyloxyoxan-2-yl]methoxy]oxane-2-carboxylate | 182698-31-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl (2S,3S,4S,5R,6R)-3,4,5-triacetyloxy-6-[[(2R,3S,4S,5R)-3,4,5,6-tetraacetyloxyoxan-2-yl]methoxy]oxane-2-carboxylate
• CAS: 182698-31-3
• 化学式: C₂₇H₃₆O₁₉
• 分子量: 664.571
• InChiKey: ZWYFLRUKOVCALH-RWVNREKNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.7
• 重原子数：
  46
• 可旋转键数：
  19
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.7
• 拓扑面积：
  238
• 氢给体数：
  0
• 氢受体数：
  19

反应信息

• 作为反应物：
  描述：

  methyl (2S,3S,4S,5R,6R)-3,4,5-triacetyloxy-6-[[(2R,3S,4S,5R)-3,4,5,6-tetraacetyloxyoxan-2-yl]methoxy]oxane-2-carboxylate 在 calcium sulfate 、 氢溴酸 、 氰化汞 、 溶剂黄146 、 mercury dibromide 作用下， 以 二氯甲烷 为溶剂， 反应 4.0h， 生成 methyl 3-O-[6'-O-(methyl 2'',3'',4''-tri-O-acetyl-β-D-glucuronatopyranosyl)-2',4',6'-tri-O-acetyl-β-D-galactopyranosyl]glycyrrhetinate
  参考文献：
  名称：

  Synthesis of glycyrrhetic acid diglycosides and their cytoprotective activities against CCl4--induced hepatic injury in vitro

  摘要：

  Glycyrrhetic acid diglycosides 16, 24, 25, 42 and 46, with respectively beta-D-glucuronopyranosyl-(1-->3)-beta-D-glucopyranose, -(1-->6)-alpha-D-glucopyranose, -(1-->6)-beta-D-glucopyranose, -(1-->6)-beta-D-galactopyranose, and beta-D-galacturonopyranosyl-(-->2)-beta-D-glucopyranose as sugar components at the O-3 positions on the aglycons, were synthesized. In vitro cytoprotective activities, against CCl4-induced hepatic injury, of the synthetic diglycosides, methyl beta-D-glucuronopyranosyl-(1-->4)-alpha-D-glucopyranosyl-D-glycyrrhetinate 33 and methyl esters 15 and 23 (the precursors of 16 and 24 respectively) were compared with those of glycyrrhizin 1 and beta-D-glucuronopyranosyl-(1-->2)-beta-D-glucopyranosyl-glycyrrhetic acid 2. Of the glycosides 16, 24, and 25, with beta-D-glucuronopyranosyl-glucopyranose as the sugar component, 16 and 24 were as cytoprotective as 1 and 2, whereas 25 showed no remarkable activity. From stereomodels of the glycosides these differences in activity were inferred to be due to the stereochemistries of the terminal beta-D-glucuronopyranoses in the molecules. Glycoside 46, in which the terminal beta-D-glucuronopyranose of 2 was replaced by beta-D-galacturonopyranose, was as potent as 2. Further, it was confirmed that a free COOH group on the E ring of aglycon was essential for the activity.

  DOI：

  10.1016/0223-5234(96)89552-3
• 作为产物：
  描述：

  乙酰溴-Alpha-D-葡萄糖酮酸甲基酯 在 氰化汞 作用下， 以 硝基甲烷 、 水 、 苯 为溶剂， 反应 48.0h， 生成 methyl (2S,3S,4S,5R,6R)-3,4,5-triacetyloxy-6-[[(2R,3S,4S,5R)-3,4,5,6-tetraacetyloxyoxan-2-yl]methoxy]oxane-2-carboxylate
  参考文献：
  名称：

  Synthesis of glycyrrhetic acid diglycosides and their cytoprotective activities against CCl4--induced hepatic injury in vitro

  摘要：

  Glycyrrhetic acid diglycosides 16, 24, 25, 42 and 46, with respectively beta-D-glucuronopyranosyl-(1-->3)-beta-D-glucopyranose, -(1-->6)-alpha-D-glucopyranose, -(1-->6)-beta-D-glucopyranose, -(1-->6)-beta-D-galactopyranose, and beta-D-galacturonopyranosyl-(-->2)-beta-D-glucopyranose as sugar components at the O-3 positions on the aglycons, were synthesized. In vitro cytoprotective activities, against CCl4-induced hepatic injury, of the synthetic diglycosides, methyl beta-D-glucuronopyranosyl-(1-->4)-alpha-D-glucopyranosyl-D-glycyrrhetinate 33 and methyl esters 15 and 23 (the precursors of 16 and 24 respectively) were compared with those of glycyrrhizin 1 and beta-D-glucuronopyranosyl-(1-->2)-beta-D-glucopyranosyl-glycyrrhetic acid 2. Of the glycosides 16, 24, and 25, with beta-D-glucuronopyranosyl-glucopyranose as the sugar component, 16 and 24 were as cytoprotective as 1 and 2, whereas 25 showed no remarkable activity. From stereomodels of the glycosides these differences in activity were inferred to be due to the stereochemistries of the terminal beta-D-glucuronopyranoses in the molecules. Glycoside 46, in which the terminal beta-D-glucuronopyranose of 2 was replaced by beta-D-galacturonopyranose, was as potent as 2. Further, it was confirmed that a free COOH group on the E ring of aglycon was essential for the activity.

  DOI：

  10.1016/0223-5234(96)89552-3