2-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)acetic acid | 186532-64-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)acetic acid
• 英文别名: 2-((2R,3R,4R,5R,6R)-3,4,5-tris(benzyloxy)-6-((benzyloxy)methyl)tetrahydro-2H-pyran-2-yl)acetic acid；2-[(2R,3R,4R,5R,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]acetic acid
• CAS: 186532-64-9
• 化学式: C₃₆H₃₈O₇
• 分子量: 582.694
• InChiKey: VFYNVTKGNSXJFR-TYNWZBIMSA-N

物化性质

• 沸点：
  722.8±60.0 °C(Predicted)
• 密度：
  1.23±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.1
• 重原子数：
  43
• 可旋转键数：
  15
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  83.4
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  2-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)acetic acid 在 bis[1,1-di(trifluoromethyl)ethoxy][(2,6-diisopropylphenyl)imino](2-methyl-2-phenylpropylidene)molybdenum 、 lead(II) chloride 4-二甲氨基吡啶 、 四甲基乙二胺 、 四氯化钛 、 N,N'-二环己基碳二亚胺 、 锌 作用下， 以 四氢呋喃 、 二氯甲烷 、 甲苯 为溶剂， 反应 30.0h， 生成
  参考文献：
  名称：

  Synthesis and Partial Biological Evaluation of a Small Library of Differentially-Linked β-C-Disaccharides¹

  摘要：

  The synthesis of a small library of differentially-linked beta-C-disaccharides has been carried out through the use of a radical allylation-RCM strategy. Acids 6 were prepared by Keck allylation of a suitable carbohydrate-based radical precursor, followed by oxidative cleavage of the formed alkene. Dehydrative coupling of these acids with the known olefin alcohol 5 then gave the precursor esters 7 in excellent yield. Methylenation of the esters 7 was followed by RCM and in situ hydroboration-oxidation of the formed glycals to furnish the protected beta-C-disaccharides 10 in good overall yield. Five examples were then deprotected and screened for their efficacy as enzyme inhibitors of beta-glycosidase and against several solid-tumor cell lines for in vitro differential cytotoxicity.

  DOI：

  10.1021/jo030039x
• 作为产物：
  描述：

  2,6-Anhydro-7,8,9-trideoxy-D-glycero-D-manno-non-8-enitol 在 chromium(VI) oxide 、 硫酸 、 四丁基碘化铵 、 sodium hydride 、 臭氧 、 三苯基膦 作用下， 以 四氢呋喃 、 丙酮 为溶剂， 生成 2-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)acetic acid
  参考文献：
  名称：

  C-Mannose derivatives as potent mimics of sialyl Lewis X

  摘要：

  The synthesis of five sialyl Lewis X mimetics was described. Mimetics 2 - 6 were easily synthesized from readily available starting materials. Mimics 4 and 6 showed activities five-fold better than sialyl Lewis X. Copyright (C) 1996 Elsevier Science Ltd

  DOI：

  10.1016/s0040-4039(96)02124-7

文献信息

• Sites for Dynamic Protein-Carbohydrate Interactions of O- and C-Linked Mannosides on the E. coli FimH Adhesin
  作者：Mohamed Touaibia、Eva-Maria Krammer、Tze Shiao、Nao Yamakawa、Qingan Wang、Anja Glinschert、Alex Papadopoulos、Leila Mousavifar、Emmanuel Maes、Stefan Oscarson、Gerard Vergoten、Marc Lensink、René Roy、Julie Bouckaert

  DOI：10.3390/molecules22071101

  日期：——

  amide, or sulfonamide were investigated to fit a hydrophobic substituent with up to two aryl groups within the tyrosine gate emerging from the mannose-binding pocket of FimH. The results were summarized into a set of structure-activity relationships to be used in FimH-targeted inhibitor design: alkene linkers gave an improved affinity and inhibitory potential, because of their relative flexibility combined

  大肠杆菌1型纤维粘附素FimH的拮抗剂被公认为是针对急性和复发性细菌感染的抗生素疗法和预防剂的诱人替代品。在这项研究中，研究了与烷基，烯烃，炔烃，硫代烷基，酰胺或磺酰胺O-或C-连接的α-d-甘露糖吡喃糖苷，以使疏水取代基在甘露糖-酪氨酸的酪氨酸门内具有最多两个芳基。 FimH的装订袋。结果总结为一组结构-活性关系，可用于以FimH为靶标的抑制剂设计：烯烃连接基具有相对​​的柔韧性以及与位于中间的异亮氨酸52的良好相互作用，从而提高了亲和力和抑制潜力酪氨酸门。特别令人感兴趣的是C联甘露糖苷，与邻取代联苯连接的烯烃，其亲和力类似于其O-甘露糖苷类似物，但优于其对位取代类似物。其高分辨率NMR溶液结构与FimH粘附素的对接表明，其最终的，邻位的苯环能够与异亮氨酸13相互作用，该异亮氨酸位于钳环中，并在施加于细菌的剪切力作用下发生构象变化。分子动力学模拟证实，C-甘露糖苷构象子的亚群能够在Fim
• Synthesis of the C-Glycoside Analogue of a Novel Sialyl Lewis X Mimetic
  作者：Xuhong Cheng、Noshena Khan、David R. Mootoo

  DOI：10.1021/jo991898h

  日期：2000.4.1

  Sialyl Lewis X (sLex) mimetics that can function as selectin antagonists have received considerable attention in connection with the development of novel antiinflammatory therapies. An interesting structure that emerged from the studies of the Wong group is the 1,1-Gal-Man disaccharide 2, reported to bind E-selectin 5 times more strongly than sLex. The C-glycoside derivative 3 is of interest both as

  可以用作选择素拮抗剂的唾液酸化路易斯X（sLex）模拟物在新型抗炎疗法的开发中受到了广泛的关注。Wong研究组出现的一个有趣结构是1,1-Gal-Man二糖2，据报道其结合E-选择素的强度是sLex的5倍。C-糖苷衍生物3作为选择素结合的构象探针和水解稳定的类似物都是令人感兴趣的。在这里，我们举例说明了在3的合成中用于β-C-半乳糖二糖的新方法。该协议的关键步骤是将新的羰基碳鎓离子-烯醇醚环化以生成C1取代的半乳糖。
• Small Molecules as Structural and Functional Mimics of Sialyl Lewis X Tetrasaccharide in Selectin Inhibition:  A Remarkable Enhancement of Inhibition by Additional Negative Charge and/or Hydrophobic Group
  作者：Chi-Huey Wong、Francisco Moris-Varas、Shang-Cheng Hung、Thomas G. Marron、Chun-Cheng Lin、Ke Wei Gong、Gabriele Weitz-Schmidt

  DOI：10.1021/ja970920q

  日期：1997.9.1

  Several sialyl Lewis X (SLex) mimics that contain the essential functional groups for receptor interaction and a negative charge or a hydrophobic group have been developed as inhibitors of E-, P-, and L-selectins. Some of the mimics exhibit selectin inhibition activities 103−104-fold more potent than does the natural ligand tetrasaccharide, with IC50 in the low micromolar to high nanomolar range. The

  几种唾液酸路易斯 X (SLex) 模拟物包含受体相互作用的基本官能团和负电荷或疏水基团，已被开发为 E-、P- 和 L-选择素的抑制剂。一些模拟物表现出比天然配体四糖强 103-104 倍的选择素抑制活性，IC50 在低微摩尔至高纳摩尔范围内。这些模拟物的合成相对简单，使用 TMSOTf-Ac2O 介导的 C-糖基化，同时选择性去保护初级苄基和酶促醛醇加成反应作为关键步骤。
• A Unified Approach to Differentially Linked β-<i>C</i>-Disaccharides by Ring-Closing Metathesis
  作者：Lei Liu、Maarten H. D. Postema

  DOI：10.1021/ja010641+

  日期：2001.9.1
• Synthesis of sialyl Lewis X mimetics using the Ugi four-component reaction
  作者：Chung-Ying Tsai、William K.C. Park、Gabriele Weitz-Schmidt、Beat Ernst、Chi-Huey Wong

  DOI：10.1016/s0960-894x(98)00422-3

  日期：1998.9

  Application of the Ugi four-component condensation to rapidly synthesize a library of glycopeptide mimics of the tetrasaccharide SLe(x) as inhibitors of E- and P-selectin, and to study the effect of varied functionality in mimics on the inhibition is described. (C) 1998 Elsevier Science Ltd. All rights reserved.