benzyl 2-acetamido-2-deoxy-3,6-di-O-pivaloyl-α-D-glucopyranoside | 206751-88-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: benzyl 2-acetamido-2-deoxy-3,6-di-O-pivaloyl-α-D-glucopyranoside
• 英文别名: pivaloyl(-3)[pivaloyl(-6)]GlcNAc(a)-O-Bn；[(2R,3S,4R,5R,6S)-5-acetamido-4-(2,2-dimethylpropanoyloxy)-3-hydroxy-6-phenylmethoxyoxan-2-yl]methyl 2,2-dimethylpropanoate
• CAS: 206751-88-4
• 化学式: C₂₅H₃₇NO₈
• 分子量: 479.571
• InChiKey: AXZVOAQLBDIYHS-ONUIULTDSA-N

物化性质

• 沸点：
  617.0±55.0 °C(Predicted)
• 密度：
  1.18±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  34
• 可旋转键数：
  11
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.64
• 拓扑面积：
  120
• 氢给体数：
  2
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  benzyl 2-acetamido-2-deoxy-3,6-di-O-pivaloyl-α-D-glucopyranoside 生成 苄基-2-乙酰胺基-2-脱氧-Alpha-D-吡喃半乳糖苷
  参考文献：
  名称：

  皮肤素的二糖片段O-（2-O-磺基-α-1-氨基吡喃糖基糖醛酸）-（1→3）-2-乙酰氨基-2-脱氧-4-O-磺基-d-吡喃半乳糖三钠盐的合成硫酸盐

  摘要：

  摘要通过三步操作，将苄基2-乙酰氨基-2-脱氧-α和β-d-吡喃葡萄糖苷高产率地转化为相应的d-半乳糖类似物。这些后来以直接的方式分别转化为苄基2-乙酰氨基-4-O-乙酰基-6-O-苄基-2-脱氧-α和β-d-吡喃半乳糖苷，它们在糖基化反应中以各种方式用作受体。活化的2-O-苯甲酰基-3-O-苄基-4-O-氯乙酰基-1-碘吡喃醛酸酯的衍生物。由三氟甲磺酸银促进的氯化物衍生物的缩合出乎意料地导致了β-连接的二糖的形成，而三氯乙酰亚胺基衍生物以63％的收率提供了预期的α-连接的二糖。随后进行O-脱氯乙酰化，然后在糖醛酸部分的O-4处进行4-甲氧基苄基化，

  DOI：

  10.1016/s0008-6215(97)10017-9
• 作为产物：
  描述：

  D-GlcNAc 在 吡啶 、 三氟化硼乙醚 作用下， 以 二氯甲烷 为溶剂， 反应 7.0h， 生成 benzyl 2-acetamido-2-deoxy-3,6-di-O-pivaloyl-α-D-glucopyranoside
  参考文献：
  名称：

  Synthesis and biological evaluation of new UDP-GalNAc analogues for the study of polypeptide-α-GalNAc-transferases

  摘要：

  A series of three O-methylated UDP-GalNAc analogues have been synthesised using a divergent strategy from a 3,6-di-O-pivaloyl GlcNAc derivative. The biological activity of these probes toward polypeptide-alpha-GalNAc-transferase T1 has been investigated. This study shows that this glycosyltransferase exhibits a very high substrate specificity. (C) 2003 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0960-894x(03)00287-7

文献信息

• A Sulfitylation−Oxidation Protocol for the Preparation of Sulfates
  作者：M. Huibers、Álvaro Manuzi、Floris P. J. T. Rutjes、Floris L. van Delft

  DOI：10.1021/jo060404v

  日期：2006.9.1

  A novel, high-yielding method for sulfation of alcohols has been developed, proceeding via sulfite- and sulfate diester intermediates. Sulfite diesters serve as versatile sulfate monoester precursors, allowing for transformations that are difficult or impossible with the latter compounds.

  通过亚硫酸盐和硫酸盐二酯中间体，已经开发了一种新颖的高产率的醇硫酸化方法。亚硫酸盐二酯可用作通用的硫酸盐单酯前体，从而使后者化合物难以或不可能进行转化。
• Synthesis of Amino-Bridged Oligosaccharide Mimetics
  作者：Janna Neumann、Joachim Thiem

  DOI：10.1002/ejoc.200901106

  日期：2010.2

  Synthesis of amino-bridged oligosaccharides using reductive amination opens rapid access to novel glycomimetic target structures as potential ligands for the receptor protein NKR P1 of natural killer cells. Emphasis was laid on fast and facile synthetic routes. The carbonyl building blocks were easily obtained by oxidation with Dess-Martin periodinane or iodoxybenzoic acid (IBX). For the required

  使用还原胺化合成氨基桥连寡糖开辟了快速获取新的拟糖靶结构作为自然杀伤细胞受体蛋白 NKR P1 的潜在配体的途径。重点放在快速简便的合成路线上。通过用戴斯-马丁高碘烷或碘氧基苯甲酸 (IBX) 氧化很容易获得羰基结构单元。对于所需的氨基官能化单元，叠氮化物前体的还原是有利的，并且通过随后的还原胺化实现了新型寡糖的生成。目标糖类结构的特征是在两个非异头位置之间插入一个桥接氮原子，并包括一个异头位置。
• Synthesis of UDP-GalNAc analogues as probes for the study of polypeptide-α-GalNAc-transferases. Part 2
  作者：Patricia Busca、Olivier R. Martin

  DOI：10.1016/j.tetlet.2004.04.074

  日期：2004.5

  The synthesis of four UDP-GalNAc analogues (1–4) is described. The 3-, 4- and 6-deoxygenated analogues 1–3 were obtained by way of a divergent strategy starting from a 3,6-di-O-pivaloyl GlcNAc derivative as a common precursor. Analogue 4 bearing a N-trifluoroacetamido group was prepared from the trifluoromethylated oxazoline 24 as key intermediate. These compounds were designed to probe the substrate

  四个UDP-半乳糖胺类似物（合成1 - 4）进行说明。的3-，4-和6-脱氧类似物1 - 3由来自开始发散策略方式获得的3,6-二- ö -pivaloyl的GlcNAc衍生物作为共同的前体。由三氟甲基化的恶唑啉24作为关键中间体制备了带有N-三氟乙酰酰胺基的类似物4。设计这些化合物以探测多肽-α-GalNAc转移酶的底物特异性。
• Synthesis and biological evaluation of new UDP-GalNAc analogues for the study of polypeptide-α-GalNAc-transferases
  作者：Patricia Busca、Véronique Piller、Friedrich Piller、Olivier R. Martin

  DOI：10.1016/s0960-894x(03)00287-7

  日期：2003.6

  A series of three O-methylated UDP-GalNAc analogues have been synthesised using a divergent strategy from a 3,6-di-O-pivaloyl GlcNAc derivative. The biological activity of these probes toward polypeptide-alpha-GalNAc-transferase T1 has been investigated. This study shows that this glycosyltransferase exhibits a very high substrate specificity. (C) 2003 Elsevier Science Ltd. All rights reserved.
• Synthesis of O-(2-O-sulfo-α-l-idopyranosyluronic acid)-(1 → 3)-2-acetamido-2-deoxy-4-O-sulfo-d-galactopyranose trisodium salt, a disaccharide fragment of dermatan sulfate
  作者：Laurence Rochepeau-Jobron、Jean-Claude Jacquinet

  DOI：10.1016/s0008-6215(97)10017-9

  日期：1997.12

  O -benzyl-2-deoxy- α , and β- d -galactopyranoside, respectively, which served as acceptors in glycosylation reactions with variously activated derivatives of methyl 2-O- benzoyl -3-O- benzyl -4-O- chloroacetyl- l -idopyranuronate . Condensation of the chloride derivative promoted by silver triflate led unexpectedly to the formation of the β-linked disaccharide, whereas the trichloroacetimidoyl derivative

  摘要通过三步操作，将苄基2-乙酰氨基-2-脱氧-α和β-d-吡喃葡萄糖苷高产率地转化为相应的d-半乳糖类似物。这些后来以直接的方式分别转化为苄基2-乙酰氨基-4-O-乙酰基-6-O-苄基-2-脱氧-α和β-d-吡喃半乳糖苷，它们在糖基化反应中以各种方式用作受体。活化的2-O-苯甲酰基-3-O-苄基-4-O-氯乙酰基-1-碘吡喃醛酸酯的衍生物。由三氟甲磺酸银促进的氯化物衍生物的缩合出乎意料地导致了β-连接的二糖的形成，而三氯乙酰亚胺基衍生物以63％的收率提供了预期的α-连接的二糖。随后进行O-脱氯乙酰化，然后在糖醛酸部分的O-4处进行4-甲氧基苄基化，