2,3,6-tri-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-α-D-glucopyranosyl chloride | 114055-00-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,3,6-tri-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-α-D-glucopyranosyl chloride
• 英文别名: (2R,3R,4S,5R,6R)-2-chloro-3,4-bis(phenylmethoxy)-6-(phenylmethoxymethyl)-5-[(2R,3R,4S,5R,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxyoxane
• CAS: 114055-00-4
• 化学式: C₆₁H₆₃ClO₁₀
• 分子量: 991.618
• InChiKey: XQMVDPAOFQLNCX-CZPKAMCTSA-N

物化性质

• 密度：
  1.25±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  11.42
• 重原子数：
  72.0
• 可旋转键数：
  25.0
• 环数：
  9.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  92.3
• 氢给体数：
  0.0
• 氢受体数：
  10.0

反应信息

• 作为反应物：
  描述：

  2,3,6-tri-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-α-D-glucopyranosyl chloride 在 palladium on activated charcoal 2,4,6-三甲基吡啶 、 氢气 、 silver perchlorate 、 sodium hydride 作用下， 以 乙醚 、 乙二醇甲醚 为溶剂， 反应 5.0h， 生成 O-α-D-glucopyranosyl-(1->4)-O-α-D-glucopyranosyl-(1->4)-D-glucopyranose
  参考文献：
  名称：

  Synthesis of the oligosaccharides α-d-Glcp(1→4)-d-Xylp, α-d-Xylp-(1→4)-d-Glcp, α-d-Glcp-(1→4)-α-d-Glcp-(1→4)-d-Xylp, α-d-Glcp-(1→4)-α-d-Xylp-(1→4)-d-Glcp, and α-d-Xylp-(1→4)-α-d-Glcp-(1→4)-d-Glcp

  摘要：

  Syntheses are described of the disaccharides, alpha-D-Glcp-( -->4) -D-Xylp, alpha-D-Xylp-(1 --> 4)-D-Glcp, and alpha-D-Xylp-(1 --> 4)-D-Xylp, and trisaccharides, alpha-D-Glcp-(1 --> 4)-alpha-D-Glcp-(1 --> 4)-D-Xylp, alpha-D-Glcp-( --> 4)-alpha-D-Xylp-(1 --> 4)-D-Gep, and alpha-D-Xylp-(1 --> 4)-alpha-D-Glcp-(1 --> 4)-D-Glcp as analogues of glucoamylase and soybean beta-amylases substrates.

  DOI：

  10.1016/0008-6215(91)80154-f
• 作为产物：
  描述：

  4-methoxyphenylmethyl 2,3,6-tri-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-β-D-glucopyranoside 在 氯化亚砜 、 水 、 N,N-二甲基甲酰胺 、 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 生成 2,3,6-tri-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-α-D-glucopyranosyl chloride
  参考文献：
  名称：

  Synthesis of α,α-, α,β-, and β,β-(dimaltoside)s of ethane-1,2-diol, propane-1,3-diol, and butane-1,4-diol: A proposal for an initial adhesion mode

  摘要：

  Nine dimaltoside derivatives of ethane-1,2-diol, propane-1,3-diol, and butane-1,4-diol having the alpha,alpha, alpha,beta, and beta,beta anomeric configurations at the linkage sites have been synthesized. Suitably protected maltosyl halides or a 1-(phenylthio) derivative were condensed with the foregoing diols and the resulting monomaltosyl derivatives were further condensed with the maltosyl donors to give, after deprotection, the title compounds. Their structures were fully characterized by NMR spectroscopy. Interactions between the three alpha,alpha-(dimaltoside)s and cinnamyl alcohol are briefly discussed. (C) 1998 Elsevier Science Ltd. All rights reserved

  DOI：

  10.1016/s0008-6215(98)00191-8

文献信息

• Solvent-free, under air selective synthesis of α-glycosides adopting glycosyl chlorides as donors
  作者：Serena Traboni、Giulia Vessella、Emiliano Bedini、Alfonso Iadonisi

  DOI：10.1039/d0ob01024c

  日期：——

  targets due to their abundance in natural oligosaccharides involved in many biological processes. Nevertheless their preparation is hampered by several issues, due to both the strictly anhydrous conditions typically required in glycosylation procedures and the non-trivial achievement of high α-stereoselectivity, one of the major challenges in oligosaccharide synthesis. In this paper we report a novel and

  α-糖苷是高度相关的合成目标，因为它们在许多生物过程中涉及的天然寡糖中含量丰富。然而，由于糖基化过程中通常需要严格的无水条件和高α-立体选择性的非平凡实现，它们的制备受到几个问题的阻碍，这是寡糖合成中的主要挑战之一。在本文中，我们报告了一种用于高度立体选择性合成 α-糖苷的新型有效方法。这是基于前所未有的无溶剂组合亚磷酸三乙酯、溴化四丁基铵和N , N-二异丙基乙胺用于在空气中活化糖基氯。尽管糖基氯相对于反应性更强的卤化物供体具有相对稳定性，但与溶液中的类似糖基化方法相比，无溶剂程序允许在更短的时间内获得大量 α-糖苷，包括生物相关片段。所提出的方法具有广泛的目标范围和官能团兼容性，也适用于部分解除武装的底物，并且不需要高化学计量过量的试剂，也不需要制备昂贵的前体。无溶剂糖基化甚至可以直接从 1-羟基糖进行，无需原位纯化 生成氯化物，在高反应性和不稳定的糖基供体的情况下提供了一个特别有用的机会。
• All-α-d-linked tetra- and penta-saccharide substructures of Trestatin A by block syntheses with triflic anhydride as promoter
  作者：Hans Peter Wessel、Beatrice Mayer、Gerhard Englert

  DOI：10.1016/0008-6215(93)80028-d

  日期：1993.4

  The perbenzylated maltosyl and maltotriosyl fluorides 6 and 16 were treated with 2,3,2',3',6'-penta-O-benzyl-4,6-O-benzylidene-alpha,alpha-trehalose (7) using triflic anhydride as a promoter to give all-alpha-D-linked tetra- and penta-saccharides which were finally deblocked to the free oligosaccharides 4-O-alpha-maltosyl- 9 and 4-O-alpha-maltotriosyl-alpha,alpha-trehaloses 18. The H-1 NMR spectra of some of the compounds were fully analyzed by 1D TOCSY and ROESY experiments.
• Synthesis of trisaccharide glycosides related to nigeran
  作者：Ken'ichi Takeo、Tohru Imai

  DOI：10.1016/0008-6215(87)80086-1

  日期：1987.7
• TAKEO, KENICHI;TERAMOTO, YASUHIRO;SHIMONO, YUMI;NITTA, YASUNORI, CARBOHYDR. RES., 209,(1991) C. 167-179
  作者：TAKEO, KENICHI、TERAMOTO, YASUHIRO、SHIMONO, YUMI、NITTA, YASUNORI

  DOI：——

  日期：——
• PAULSEN, HANS;LORENTZEN, JENS PETER, CARBOHYDR. RES., 165,(1987) N 2, 207-227
  作者：PAULSEN, HANS、LORENTZEN, JENS PETER

  DOI：——

  日期：——