(2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl)benzene | 99212-20-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl)benzene
• 英文别名: [(2R,3R,4R,5S,6R)-3,4,5-triacetyloxy-6-phenyloxan-2-yl]methyl acetate
• CAS: 99212-20-1
• 化学式: C₂₀H₂₄O₉
• 分子量: 408.405
• InChiKey: RSVDHRRPXRATQV-UEDWAMCQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  29
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  114
• 氢给体数：
  0
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  (2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl)benzene 在 甲醇 、 sodium hydroxide 、 potassium ethoxide 、 silver(l) oxide 作用下， 生成 α-1,5-anhydro-2,3,4,6-tetra-O-methyl-1-C-phenyl-D-glucitol
  参考文献：
  名称：

  Derivatives of the Anomeric Glucopyranosylbenzenes

  摘要：

  DOI：

  10.1021/ja01164a045
• 作为产物：
  描述：

  β-D-葡萄糖五乙酸酯 在 氢溴酸 、 溶剂黄146 作用下， 以 乙醚 为溶剂， 反应 135.5h， 生成 (2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl)benzene
  参考文献：
  名称：

  Synthesis and screening of bicyclic carbohydrate-based compounds: A novel type of antivirals

  摘要：

  A small library of bicyclic carbohydrate derivatives was synthesized and screened. A strong and selective activity against cytomegalovirus was found. Structure-activity relationship for this new type of antivirals is discussed. (C) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2005.12.048

文献信息

• Stereoselective Preparation of α-<i>C</i>-Vinyl/Aryl Glycosides via Nickel-Catalyzed Reductive Coupling of Glycosyl Halides with Vinyl and Aryl Halides
  作者：Jiandong Liu、Hegui Gong

  DOI：10.1021/acs.orglett.8b03567

  日期：2018.12.21

  Facile preparation of the α-C-vinyl and -aryl glycosides has been developed via mild Ni-catalyzed reductive vinylation and arylation of C1-glycosyl halides with vinyl/aryl halides. Good to high α-selectivities were achieved for C-glucosides, galactosides, maltoside, and mannosides, which were dictated by the employment of pyridine type ligands. As such, the present work represents unprecedented control

  通过温和的Ni催化还原性乙烯基化和C1-糖基卤化物与乙烯基/芳基卤化物的芳基化，已经开发出了制备α- C-乙烯基和-芳基糖苷的简便方法。对于C-葡萄糖苷，半乳​​糖苷，麦芽糖苷和甘露糖苷，具有良好或较高的α选择性，这是由吡啶类配体的使用决定的。这样，本发明代表了使用交叉偶联方法对C-乙烯基葡糖苷的高水平α-选择性的空前控制，并且通过催化剂控制的偶联策略提供了迄今为止最优化的C-芳基葡糖苷的α-选择性制备。
• Synthesis of Aryl <i>C</i>-Glycosides via Iron-Catalyzed Cross Coupling of Halosugars: Stereoselective Anomeric Arylation of Glycosyl Radicals
  作者：Laksmikanta Adak、Shintaro Kawamura、Gabriel Toma、Toshio Takenaka、Katsuhiro Isozaki、Hikaru Takaya、Akihiro Orita、Ho C. Li、Tony K. M. Shing、Masaharu Nakamura

  DOI：10.1021/jacs.7b03867

  日期：2017.8.9

  We have developed a novel diastereoselective iron-catalyzed cross-coupling reaction of various glycosyl halides with aryl metal reagents for the efficient synthesis of aryl C-glycosides, which are of significant pharmaceutical interest due to their biological activities and resistance toward metabolic degradation. A variety of aryl, heteroaryl, and vinyl metal reagents can be cross-coupled with glycosyl

  我们开发了一种新型的非对映选择性铁催化的各种糖基卤化物与芳基金属试剂的交叉偶联反应，用于有效合成芳基 C-糖苷，由于它们的生物活性和对代谢降解的抵抗力，它们具有重要的药学价值。在由氯化铁 (II) 和庞大的双膦配体 TMS-SciOPP 组成的明确定义的铁络合物的存在下，各种芳基、杂芳基和乙烯基金属试剂可以与糖基卤化物以高产率交叉偶联。该反应的化学选择性允许使用合成通用的乙酰保护糖基供体，并在芳基部分结合各种官能团，产生多种芳基 C-糖苷，包括 Canagliflozin、一种钠-葡萄糖协同转运蛋白 2 (SGLT2) 抑制剂和一种流行的糖尿病药物。交叉偶联反应通过糖基自由基中间体的生成和立体选择性捕获进行，代表了基于铁催化的高度立体选择性碳-碳键形成的罕见例子。使用 3,4,6-tri-O-acetyl-2-O-allyl-α-d-glupyranosyl bromide (8) 和 6-bromo-1-hexene
• Diastereoselective Ni-Catalyzed Negishi Cross-Coupling Approach to Saturated, Fully Oxygenated <i>C</i>-Alkyl and <i>C</i>-Aryl Glycosides
  作者：Hegui Gong、Michel R. Gagné

  DOI：10.1021/ja8041564

  日期：2008.9.10

  A Ni-catalyzed Negishi cross-coupling approach to C-glycosides is described with an emphasis on C-aryl glycosides. The combination of NiCl2/PyBox in N,N'-dimethylimidazolidinone (DMI) enabled the synthesis of C-alkyl glycosides under mild reaction conditions. Moderate yields and beta-selectivities were obtained for C-glucosides, and good yields and high alpha-selectivities were the norm for C-mannosides

  介绍了一种 Ni 催化的 Negishi 交叉偶联方法来处理 C-糖苷，重点是 C-芳基糖苷。NiCl2/PyBox 在 N,N'-二甲基咪唑烷酮 (DMI) 中的组合能够在温和的反应条件下合成 C-烷基糖苷。C-葡萄糖苷获得了中等的产量和β-选择性，而良好的产量和高α-选择性是C-甘露糖苷的标准。对于 C-芳基糖苷，在 N,N-二甲基甲酰胺 (DMF) 中使用 Ni(COD)2/(t)Bu-Terpy 的反应通常具有高产率，并提供具有高 β-选择性（1:>10 α: beta) 和 C-甘露糖苷具有中等 alpha 选择性 (3:1 alpha:beta)；α-C-芳基糖苷可以通过 Ni(COD)2/PyBox 在 DMF (>20:1 alpha:beta) 中的组合获得。集体研究表明，C-糖苷的立体化学控制取决于底物和催化剂的组合。Negishi 协议显示出出色的官能团耐受性，正如其在天然产物沙甲素
• Stereoselective Preparation of <i>C</i> ‐Aryl Glycosides <i>via</i> Visible‐Light‐Induced Nickel‐Catalyzed Reductive Cross‐Coupling of Glycosyl Chlorides and Aryl Bromides
  作者：Ze‐Dong Mou、Jia‐Xi Wang、Xia Zhang、Dawen Niu

  DOI：10.1002/adsc.202100343

  日期：2021.6.21

  A nickel-catalyzed cross-coupling reaction of glycosyl chlorides with aryl bromides has been developed. The reaction proceeds smoothly under visible-light irradiation and features the use of bench-stable glycosyl chlorides, allowing the highly stereoselective synthesis of C-aryl glycosides.

  已经开发了一种镍催化的糖基氯与芳基溴的交叉偶联反应。该反应在可见光照射下顺利进行，并使用了实验室稳定的糖基氯，可以高度立体选择性地合成C-芳基糖苷。
• Diastereoselective Metal-Catalyzed Synthesis of<i>C</i>-Aryl and<i>C</i>-Vinyl Glycosides
  作者：Lionel Nicolas、Patrick Angibaud、Ian Stansfield、Pascal Bonnet、Lieven Meerpoel、Sébastien Reymond、Janine Cossy

  DOI：10.1002/anie.201204786

  日期：2012.10.29

  Cobalt, the catalyst of choice: The diastereoselective cobalt‐catalyzed cross‐coupling of 1‐bromo glycosides and aryl or vinyl Grignard reagents is described. A convenient and inexpensive catalyst, [Co(acac)3]/tmeda (acac=acetylacetonate, tmeda=N,N′‐tetramethylethylenediamine), gives full α selectivity in the mannose and galactose series, and an α selectivity in the glucose series with α/β ratios of

  钴，选择的催化剂：描述了1-溴糖苷与芳基或乙烯基格氏试剂的非对映选择性钴催化的交叉偶联。一种方便且廉价的催化剂[Co（acac）3 ] / tmeda（acac =乙酰丙酮酸酯，tmeda = N，N'-四甲基乙二胺）在甘露糖和半乳糖系列中具有完全的α选择性，而在葡萄糖系列中具有一个α选择性， α / β比为1.3：1-3：1。