2,4,6-tri-O-acetyl-3-O-benzyl-alpha-D-glucopyranosyl chloride | 189144-47-6

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2,4,6-tri-O-acetyl-3-O-benzyl-alpha-D-glucopyranosyl chloride
• 英文别名: [(2R,3R,4S,5R,6R)-3,5-diacetyloxy-6-chloro-4-phenylmethoxyoxan-2-yl]methyl acetate
• CAS: 189144-47-6
• 化学式: C₁₉H₂₃ClO₈
• 分子量: 414.84
• InChiKey: YMWGKPHLEMGDBZ-FQBWVUSXSA-N

物化性质

• 沸点：
  496.7±45.0 °C(Predicted)
• 密度：
  1.29±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  28
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  97.4
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  2,4,6-tri-O-acetyl-3-O-benzyl-alpha-D-glucopyranosyl chloride 在 吡啶 、 2,4,6-三甲基吡啶 、 4 A molecular sieve 、 sodium methylate 、 silver trifluoromethanesulfonate 、 乙酸酐 作用下， 以 甲醇 为溶剂， 反应 19.5h， 生成 (2R,3R,4S,5R,6R)-2-(hydroxymethyl)-4-phenylmethoxy-6-(2-trimethylsilylethoxy)oxane-3,5-diol
  参考文献：
  名称：

  Synthesis of Kojidextrins and Their Protein Conjugates. Incidence of Steric Mismatch in Oligosaccharide Synthesis

  摘要：

  Kojidextrins are biologically important oligosaccharides that are involved in many physiological processes including protein glycosylation and bacterial growth. As part of our project to explore the role kojidextrins may play in bacterial pathogenesis, here we report Synthetic routes to kojibiose (54), -triose (58), -tetraose (64), and -pentaose (69) equipped with alpha-linked (hydrazinocarbonyl)-pentyl aglycon, using linear and convergent strategies. In the search for a rapid convergent strategy for the construction of extended kojidextrins, four kojibiose donors (1-4) were synthesized that contain acyl- and ether-type protecting groups in various ratios. These were tested to probe the influence of diverse protecting group assemblies on their glycosyl donor ability. Attempted condensation of these donors with kojitriose and -tetraose accepters failed to give the desired products apparently because of steric mismatch between the donor and the acceptor moieties. A one-pot procedure was developed for the covalent attachment of the synthetic saccharides through their hydrazido group to human serum albumin (HSA) using Tietze's squarate method to give neoglycoproteins containing up to 28 saccharide units per HSA.

  DOI：

  10.1021/jo962300y
• 作为产物：
  描述：

  1,2,4,6-四-o-乙酰基-3-o-苄基-beta-d-吡喃葡萄糖 在 zinc chloride diethyl ether 、 1,1-二氯甲醚 作用下， 以 二氯甲烷 为溶剂， 反应 0.33h， 以91%的产率得到2,4,6-tri-O-acetyl-3-O-benzyl-alpha-D-glucopyranosyl chloride
  参考文献：
  名称：

  Synthesis of Kojidextrins and Their Protein Conjugates. Incidence of Steric Mismatch in Oligosaccharide Synthesis

  摘要：

  Kojidextrins are biologically important oligosaccharides that are involved in many physiological processes including protein glycosylation and bacterial growth. As part of our project to explore the role kojidextrins may play in bacterial pathogenesis, here we report Synthetic routes to kojibiose (54), -triose (58), -tetraose (64), and -pentaose (69) equipped with alpha-linked (hydrazinocarbonyl)-pentyl aglycon, using linear and convergent strategies. In the search for a rapid convergent strategy for the construction of extended kojidextrins, four kojibiose donors (1-4) were synthesized that contain acyl- and ether-type protecting groups in various ratios. These were tested to probe the influence of diverse protecting group assemblies on their glycosyl donor ability. Attempted condensation of these donors with kojitriose and -tetraose accepters failed to give the desired products apparently because of steric mismatch between the donor and the acceptor moieties. A one-pot procedure was developed for the covalent attachment of the synthetic saccharides through their hydrazido group to human serum albumin (HSA) using Tietze's squarate method to give neoglycoproteins containing up to 28 saccharide units per HSA.

  DOI：

  10.1021/jo962300y

文献信息

• Novel 1,4-benzothiepine 1,1-dioxide derivatives substituted by benzyl radicals, method for their preparation, pharmaceuticals comprising these compounds, and the use thereof
  申请人：Frick Wendelin

  公开号：US20100035961A1

  公开（公告）日：2010-02-11

  This invention relates to Novel 1,4-benzothiepine 1,1-dioxide derivatives substituted by benzyl radicals, method for their preparation, pharmaceuticals comprising these compounds, and the use thereof.

  本发明涉及由苯甲基基团取代的新型1,4-苯硫吩1,1-二氧化物衍生物，其制备方法，包含这些化合物的药物以及它们的用途。
• NEUE MIT BENZYLRESTEN SUBSTITUIERTE 1,4-BENZOTHIEPIN-1,1-DIOXIDDERIVATE, VERFAHREN ZU DEREN HERSTELLUNG, DIESE VERBINDUNGEN ENTHALTENDE ARZNEIMITTEL UND DEREN VERWENDUNG
  申请人：Sanofi-Aventis Deutschland GmbH

  公开号：EP2084172B1

  公开（公告）日：2010-12-22
• US7956085B2
  申请人：——

  公开号：US7956085B2

  公开（公告）日：2011-06-07
• [DE] NEUE MIT BENZYLRESTEN SUBSTITUIERTE 1,4-BENZOTHIEPIN-1,1-DIOXIDDERIVATE, VERFAHREN ZU DEREN HERSTELLUNG, DIESE VERBINDUNGEN ENTHALTENDE ARZNEIMITTEL UND DEREN VERWENDUNG<br/>[EN] NOVEL 1,4-BENZOTHIEPIN-1,1-DIOXIDE DERIVATIVES WHICH ARE SUBSTITUTED WITH BENZYL GROUPS, METHOD FOR PRODUCING DRUGS CONTAINING SAID COMPOUNDS AND USE THEREOF<br/>[FR] NOUVEAUX DÉRIVÉS DE 1,4-BENZOTHIÉPINE-1,1-DIOXYDE SUBSTITUÉS PAR DES RESTES BENZYLE, PROCÉDÉ DE PRODUCTION APPROPRIÉ, MÉDICAMENTS CONTENANT LESDITS COMPOSÉS ET LEUR UTILISATION
  申请人：SANOFI AVENTIS DEUTSCHLAND

  公开号：WO2008058628A1

  公开（公告）日：2008-05-22

  [EN] The invention relates to the compounds of formula (I) and to the physiologically acceptable salts thereof. These compounds are suitable, for example, as hypolipidemics.
  [FR] L'invention concerne les composés de formule (1), ainsi que leurs sels physiologiquement acceptables. Ces composés peuvent s'utiliser par ex. comme hypolipidémiques.
  [DE] Die Erfindung betrifft die Verbindungen der Formel I, sowie deren physiologisch verträgliche Salze. Die Verbindungen eignen sich z.B. als Hypolipidämika.