3,4,6-tri-O-benzyl-D-glucopyranose

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3,4,6-tri-O-benzyl-D-glucopyranose
• 英文别名: 3,4,6-tri-O-benzylglucose；3,4,6-tri-O-benzyl-α,β-D-glucopyranose；(3R,4R,5R,6R)-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxane-2,3-diol
• 化学式: C₂₇H₃₀O₆
• 分子量: 450.532
• InChiKey: IAEIBZGLRQJURL-OGJKZRMOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  33
• 可旋转键数：
  10
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  77.4
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  3,4,6-tri-O-benzyl-D-glucopyranose 在 sodium tetrahydroborate 作用下， 以 四氢呋喃 、 溶剂黄146 为溶剂， 反应 2.0h， 以96%的产率得到3,4,6-tri-O-benzyl-D-glucitol
  参考文献：
  名称：

  Total Synthesis of Caloporoside

  摘要：

  The first total synthesis of the fungal metabolite caloporoside 1, a strong and selective inhibitor of phospholipase C, is described. Both sugar units of its complex disaccharidic segment were obtained from 3,4,6-tri-O-benzyl-D-glucopyranose 14 as a common building block, with D-gluco-->D-manno inversions as the key strategic elements. This particular substitution reaction occurred readily on the acyclic segment (27-->28), whereas ultrasonication was required to override adverse stereoelectronic effects upon formation of beta-D-mannopyranoside unit 34. The (16R)-hydroxyheptadecylsalicylic acid part of 1 was efficiently prepared by a palladium-catalyzed Suzuki cross coupling reaction of aryltriflate 7 with the 9-alkyl-9-BBN derivative formed from alkene 6 and 9-H-9-BBN.

  DOI：

  10.1021/jo9800098
• 作为产物：
  描述：

  3,4,6-tri-O-benzyl-D-glucal epoxide 在 盐酸 作用下， 以 乙腈 为溶剂， 生成 3,4,6-tri-O-benzyl-D-glucopyranose
  参考文献：
  名称：

  武装解除武装对半胱氨酸硫苷的稳定性。

  摘要：

  半胱氨酸的硫代葡萄糖苷显示出可变的稳定性，这取决于糖基供体上保护基的性质。武装的保护基团（苄基）导致产品容易分解，而武装的保护基团（乙酰基）导致产品更稳定。由于保护基团对巯基葡糖苷稳定性的武装/解除武装作用对于带有未保护羧基的半胱氨酸更为明显，因此提出的机理是分解是由糖基硫醚的分子内质子化引发的，随后由于不定原因而取代了硫化物亲核试剂。

  DOI：

  10.1016/j.carres.2012.06.022

文献信息

• A New Method for the Stereoselective Synthesis of α- and β-Glycosylamines Using the Burgess Reagent
  作者：K. C. Nicolaou、Scott A. Snyder、Annie Z. Nalbandian、Deborah A. Longbottom

  DOI：10.1021/ja049293c

  日期：2004.5.1

  Although glycosylamines constitute an important group of carbohydrates from the standpoint of biology and medicine, methods for their synthesis typically lack substrate generality and/or result in variable stereoselectivity, especially in complex contexts. In this communication, we report an operationally simple method for the synthesis of both α- and β-glycosylamines using the Burgess reagent that overcomes

  尽管从生物学和医学的角度来看，糖基胺构成了一组重要的碳水化合物，但它们的合成方法通常缺乏底物的通用性和/或导致可变的立体选择性，尤其是在复杂的环境中。在这篇通讯中，我们报告了一种使用 Burgess 试剂合成 α- 和 β- 糖基胺的操作简单的方法，该方法以最少的合成步骤克服了许多这些限制。
• New Uses for the Burgess Reagent in Chemical Synthesis: Methods for the Facile and Stereoselective Formation of Sulfamidates, Glycosylamines, and Sulfamides
  作者：K. C. Nicolaou、Scott A. Snyder、Deborah A. Longbottom、Annie Z. Nalbandian、Xianhai Huang

  DOI：10.1002/chem.200400503

  日期：2004.11.19

  Although the Burgess reagent (methoxycarbonylsulfamoyltriethylammonium hydroxide, inner salt) has found significant use in chemical synthesis as a dehydrating agent, almost no work has been directed towards its potential in other synthetic applications. As this article will detail, we have found that the Burgess reagent is remarkably effective at accomplishing a number of non-dehydrative synthetic

  尽管Burgess试剂（甲氧基羰基氨磺酰基三乙铵氢氧化物，内盐）已发现在化学合成中作为脱水剂具有重要用途，但几乎没有工作针对其在其他合成应用中的潜力。正如本文将要详细介绍的那样，我们发现，将Burgess试剂应用于适当的底物上，例如从1,2-二醇或环氧醇，α-和C-形成氨基磺酸盐时，在完成许多非脱水合成任务方面非常有效。来自碳水化合物的β-糖胺和来自1,2-氨基醇的环状磺酰胺 除了描述这些新反应歧管的功能之外，我们还描述了一组替代的Burgess型试剂的构造，这些试剂进一步扩展了这些新反应的范围。
• 1,2-Anhydrosaccharides and 1,2-Cyclic Sulfites as Saccharide Donors in Convergent Synthesis of Glucopyranosyl-, Mannopyranosyl- and Ribofuranosylbenzocamalexin
  作者：Martin Humeník、Peter Kutschy、Vladimír Kováčik、Slávka Bekešová

  DOI：10.1135/cccc20050487

  日期：——

  A convergent synthesis of 1-(β-D-glucopyranosyl)-, 1-(α-D-mannopyranosyl)- and 1-(β-D-ribofuranosyl)benzocamalexin was elaborated as an alternative route to the linear approach based on the indoline-indole method. 1,2-Anhydrosaccharides and 1,2-cyclic sulfites as saccharide donors were used in the key glycosylation step. Coupling with benzocamalexin resulted in moderate to excellent yields of nucleoside analogs, depending on the saccharide donor, catalyst and solvent used.

  以β-D-葡萄糖苷基、α-D-甘露糖苷基和β-D-核糖呋喃苷基苯并卡马列克辛的收敛合成为替代线性方法的路线，基于吲哚-吲哚方法。在关键的糖基化步骤中使用了1,2-脱水糖和1,2-环状亚硫酸盐作为糖基供体。与苯并卡马列克辛偶联，根据所用的糖基供体、催化剂和溶剂，以中等至极好的产率得到了核苷酸类似物。

• Isoquinoline-1-Carboxylate as a Traceless Leaving Group for Chelation-Assisted Glycosylation under Mild and Neutral Reaction Conditions
  作者：Hao-Yuan Wang、Christopher J. Simmons、Stephanie A. Blaszczyk、Paul G. Balzer、Renshi Luo、Xiyan Duan、Weiping Tang

  DOI：10.1002/anie.201708920

  日期：2017.12.4

  Glycosyl isoquinoline‐1‐carboxylate was developed as a novel benchtop stable and readily available glycosyl donor. The glycosylation reaction was promoted by the inexpensive Cu(OTf)2 salt under mild reaction conditions. The copper isoquinoline‐1‐carboxylate salt was precipitated from the solution and thus rendered a traceless leaving group. Surprisingly, the proton from the acceptor was absorbed by

  糖基异喹啉-1-羧酸被开发为一种新型的台式稳定且易于获得的糖基供体。在温和的反应条件下，廉价的Cu（OTf）2盐促进了糖基化反应。异喹啉-1-羧酸铜盐从溶液中沉淀出来，因此成为无痕的离去基团。令人惊讶地，来自受体的质子被沉淀的金属络合物吸收，并且反应混合物保持在中性pH。还证明了铜促进的糖基化与金促进的糖基化完全正交，并且在温和的反应条件下，可以从台式稳定的异头酯结构单元迭代合成寡糖。
• Concise Total Syntheses of Aspalathin and Nothofagin
  作者：Akop Yepremyan、Baback Salehani、Thomas G. Minehan

  DOI：10.1021/ol100315g

  日期：2010.4.2

  Syntheses of the C-glycosyl flavone natural products aspalathin and nothofagin have been accomplished in eight steps from tribenzyl glucal, tribenzylphloroglucinol, and either 4-(benzyloxy)phenylacetylene or 3,4-bis(benzyloxy)phenylacetylene. The key step of the syntheses involves a highly stereoselective Lewis acid promoted coupling of 1,2-di-O-acyl-3,4,6-tribenzylglucose with tribenzylphloroglucinol

  C-糖基黄酮天然产物天冬酰胺和诺夫他汀的合成已由三苄基葡萄糖，三苄基间苯三酚和4-（苄氧基）苯乙炔或3,4-双（苄氧基）苯乙炔以八步完成。合成的关键步骤涉及高度立体选择性的路易斯酸促进1,2-二-O-酰基-3,4,6-三苄基葡萄糖与三苄基间苯三酚的偶联，从而在30-中产生相应的β- C-芳基糖苷65％的产率。