2-Acetamido-1-O-acetyl-3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranose | 4171-73-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-Acetamido-1-O-acetyl-3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranose
• 英文别名: 1,N-Diacetyl-3,4,6-O-tribenzyl-alpha-d-glucosamine；[(2R,3R,4R,5S,6R)-3-acetamido-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl] acetate
• CAS: 4171-73-7
• 化学式: C₃₁H₃₅NO₇
• 分子量: 533.621
• InChiKey: HXHSPLCAVIZJMH-CWMPKMHISA-N

物化性质

• 沸点：
  690.6±55.0 °C(Predicted)
• 密度：
  1.22±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  39
• 可旋转键数：
  13
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  92.3
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  2-Acetamido-1-O-acetyl-3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranose 以 甲醇 为溶剂， 生成 2-acetamido-3,4,6-tri-O-benzyl-2-deoxy-D-glucopyranose
  参考文献：
  名称：

  Syntheses with Partially Benzylated Sugars. VI.¹ Some Solvolytic Reactions of 2-Acetamido-1-O-acyl-2-deoxy-D-glucopyranose and -D-galactopyranose Derivatives

  摘要：

  DOI：

  10.1021/jo01344a033
• 作为产物：
  描述：

  2-acetamido-3,4,6-tri-O-benzyl-2-deoxy-D-glucopyranosyl acetate 在 bismuth(lll) trifluoromethanesulfonate 、 吡啶 作用下， 以 二氯甲烷 为溶剂， 反应 188.0h， 生成 2-Acetamido-1-O-acetyl-3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranose
  参考文献：
  名称：

  为什么用N-乙酰氨基葡糖供体直接糖基化如此差的反应，该怎么办？

  摘要：

  单糖N-乙酰基-d-葡糖胺（GlcNAc）是天然存在的低聚糖中丰富的组成部分，但是由于直接反应的收率低，因此通过化学糖基化的方法引入葡糖胺极具挑战性。通常认为是由中间体1,2-恶唑啉引起的此问题通常通过引入额外的合成步骤来避免，以避免在糖基化过程中出现NHAc官能团。本文介绍了对使用GlcNAc执行直接糖基化的内在挑战的新的基本机械学见解。这些结果表明，控制恶唑啉形成和糖基化的平衡是获得可接受的化学收率的关键。通过运用这种推理方法直接与GlcNAc的传统硫糖苷供体直接进行糖基化，否则其糖基化收率不佳，

  DOI：

  10.1021/acs.joc.6b02305

文献信息

• Syntheses and Doxorubicin-Inclusion Abilities of .BETA.-Cyclodextrin Derivatives with a Hydroquinone .ALPHA.-Glycoside Residue Attached at the Primary Side
  作者：Yoshiki Oda、Masumi Miura、Kenjiro Hattori、Takashi Yamanoi

  DOI：10.1248/cpb.57.74

  日期：——

  This paper describes syntheses and doxorubicin-inclusion abilities of β-cyclodextrin (CyD) derivatives with a hydroquinone α-glycoside residue attached at the primary side. The hydroquinone glycoside having an α-D-glucosidic or 2-acetamido-2-deoxy-α-D-glucosidic linkage became a useful component for providing an α-D-glucose- or 2-acetamido-2-deoxy-α-D-glucose–β-CyD conjugate. The surface plasmon resonance analyses of these β-CyD derivatives for the anticancer agent, doxorubicin, indicated that they had excellent inclusion associations on the order of 105 m−1 for the immobilized doxorubicin.

  本文描述了初级侧连接有对苯二酚 α-糖苷残基的 β-环糊精 (CyD) 衍生物的合成和阿霉素包合能力。具有α-D-糖苷键或2-乙酰氨基-2-脱氧-α-D-糖苷键的对苯二酚糖苷成为提供α--糖苷键的有用组分。 >D-葡萄糖-或 2-乙酰氨基-2-脱氧-α-D-葡萄糖-β-CyD 缀合物。这些抗癌剂阿霉素的 β-CyD 衍生物的表面等离子共振分析表明，它们与固定化的阿霉素具有 105 m-1 量级的优异包合缔合。
• Formation of 2-Acetamido-2-deoxy-D-glucopyranosidic Linkages via Glycosidation Using a Combination of Two Lewis Acids
  作者：Takashi Yamanoi、Yoshiki Oda、Masanobu Midorikawa

  DOI：10.3987/com-14-s(k)4

  日期：——

  A mixed activation system composed of ytterbium(III) triflate and a catalytic boron trifluoride diethyl etherate complex efficiently promotes the glycosylation of various alcohol acceptors using 2-acetamido-3,4,6-tri-O-benzy1-2-deoxy-alpha-D-glucopyranosyl acetate in dichloromethane at room temperature to afford 2-acetamido-2-deoxy-D-glucopyranosides in good yields with significant formation of the alpha-isomers. Notably, stereoselective glycosylations of phenol derivatives as the acceptors afforded aryl 1,2-cis-alpha-glycosides without the formation of any beta-isomers. This highly stereocontrolled 1,2-cis-alpha-glycosidation was applied to the synthesis of a novel hydroquinone alpha-glycoside.
• Formation of 1,2-cis-α-Aryl-glycosidic Linkages Directly from 2-Acetamido-2-deoxy-D-glucopyranosyl Acetate by the Mixed Activating System Using Ytterbium(III) Triflate and Catalytic Boron Trifluoride Diethyl Etherate Complex
  作者：Takashi Yamanoi、Masanobu Midorikawa、Yoshiki Oda

  DOI：10.3987/com-13-s(s)44

  日期：——

  We found that a mixed activating system using ytterbium(III) triflate and a catalytic boron trifluoride diethyl etherate complex efficiently promoted glycosidation of the 2-acetamido-3,4,6-tri-O-benzyl-2-deoxy-alpha-D-glucopyranosyl acetate in dichloromethane at room temperature to afford 2-acetamido-2-deoxy-D-glucopyranosides in good yields along with the formation of a considerable amount of alpha-isomers. Glycosylations of the aryl alcohols as the acceptors stereoselectively afforded aryl alpha-glycosides without producing any beta-isomers.