ethyl 2-O-benzoyl-3-O-chloroacetyl-1-thio-α-D-arabinofuranoside | 1263058-23-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: ethyl 2-O-benzoyl-3-O-chloroacetyl-1-thio-α-D-arabinofuranoside
• 英文别名: [(2R,3S,4R,5R)-4-(2-chloroacetyl)oxy-2-ethylsulfanyl-5-(hydroxymethyl)oxolan-3-yl] benzoate
• CAS: 1263058-23-6
• 化学式: C₁₆H₁₉ClO₆S
• 分子量: 374.842
• InChiKey: ZBCWCFJSRSYOOT-OEYIWLLWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  24
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  107
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  ethyl 2-O-benzoyl-3-O-chloroacetyl-1-thio-α-D-arabinofuranoside 在 水 作用下， 以 吡啶 为溶剂， 反应 1.0h， 以86%的产率得到ethyl 2-O-benzoyl-1-thio-α-D-arabinofuranoside
  参考文献：
  名称：

  实用的无硅策略区分阿拉伯呋喃糖衍生物中的羟基

  摘要：

  致力于纪念已故的莱昂五世·巴尼诺夫斯基教授 抽象 通过使用3,5可实现阿拉伯呋喃糖衍生物中3,5-二醇系统和2-羟基的有效区分，这对于制备可用于合成分枝杆菌阿拉伯半乳聚糖和lipoarabinomannan的核苷类似物和寡糖片段的结构单元是必需的。二- ø -苯甲酰基-1,2- ø -亚苄基-β- d -arabinofuranose或3- ø - （氯乙酰基）-β- d -arabinofuranose 1,2,5- orthobenzoate，既容易从廉价的甲基α-访问d-阿拉伯呋喃糖苷通过相应的糖基溴化物。在这种新颖的策略中，完全避免了使用昂贵的有机硅保护基，这一特点使其可以按比例放大。 通过使用3,5可实现阿拉伯呋喃糖衍生物中3,5-二醇系统和2-羟基的有效区分，这对于制备可用于合成分枝杆菌阿拉伯半乳聚糖和lipoarabinomannan的核苷类似物和寡糖片段的结构单元是必需的。二-

  DOI：

  10.1055/s-0031-1290752
• 作为产物：
  描述：

  methyl tri-O-benzoyl-α-D-arabinofuranoside 在 2,4,6-三甲基吡啶 、 1,1-二氯甲醚 、 四丁基溴化铵 、 sodium methylate 、 四氯化锡 、 三乙胺 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 16.5h， 生成 ethyl 2-O-benzoyl-3-O-chloroacetyl-1-thio-α-D-arabinofuranoside
  参考文献：
  名称：

  Ring opening of acylated β-d-arabinofuranose 1,2,5-orthobenzoates with nucleophiles allows access to novel selectively-protected arabinofuranose building blocks

  摘要：

  beta-D-Arabinofuranose 1,2,5-orthobenzoates with 3-O-acetyl, 3-O-benzoyl, and 3-O-chloroacetyl groups were prepared in an efficient manner starting from readily available crystalline methyl 2,3,5-tri-O-benzoyl-alpha-D-arabinofuranoside, and ring-opening reactions of these compounds with O- and S-nucleophiles were studied. Optimized conditions leading to the formation of the respective monosaccharide adducts (up to 96% isolated yields) and to alpha-(1 -> 5)-linked disaccharide thioglycosides with 5'-OH unprotected (up to 30% isolated yields) were found. Basing on these results, a novel approach for effective differentiation of 3,5-diol system and 2-hydroxy group in arabinofuranose thioglycosides was proposed. The selectively protected derivatives prepared are valuable building blocks for the assembly of linear and branched oligoarabinofuranosides. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2010.11.002

文献信息

• Synthesis of covalent conjugates of hexaarabinofuranoside with proteins and their testing as antigens for serodiagnosis of tuberculosis
  作者：P. I. Abronina、N. M. Podvalnyy、T. M. Mel’nikova、A. I. Zinin、K. G. Fedina、V. V. Kachala、V. I. Torgov、L. O. Kononov、E. A. Panfertsev、E. V. Baranova、V. V. Mochalov、V. I. Dyatlova、S. F. Biketov

  DOI：10.1007/s11172-010-0397-4

  日期：2010.12
• A Practical Silicon-Free Strategy for Differentiation of Hydroxy Groups in Arabinofuranose Derivatives
  作者：Polina Abronina、Nikita Podvalnyy、Sergey Sedinkin、Ksenia Fedina、Alexander Zinin、Alexander Chizhov、Vladimir Torgov、Leonid Kononov

  DOI：10.1055/s-0031-1290752

  日期：2012.4

  arabinofuranose derivatives, which is required for the preparation of building blocks useful for the synthesis of nucleoside analogues and oligosaccharide fragments of mycobacterial arabinogalactan and lipoarabinomannan, was achieved by using 3,5-di-O-benzoyl-1,2-O-benzylidene-β-d-arabinofuranose or 3-O-(chloroacetyl)-β-d-arabinofuranose 1,2,5-orthobenzoate, both readily accessible from inexpensive methyl α-d-arabinofuranoside

  致力于纪念已故的莱昂五世·巴尼诺夫斯基教授 抽象 通过使用3,5可实现阿拉伯呋喃糖衍生物中3,5-二醇系统和2-羟基的有效区分，这对于制备可用于合成分枝杆菌阿拉伯半乳聚糖和lipoarabinomannan的核苷类似物和寡糖片段的结构单元是必需的。二- ø -苯甲酰基-1,2- ø -亚苄基-β- d -arabinofuranose或3- ø - （氯乙酰基）-β- d -arabinofuranose 1,2,5- orthobenzoate，既容易从廉价的甲基α-访问d-阿拉伯呋喃糖苷通过相应的糖基溴化物。在这种新颖的策略中，完全避免了使用昂贵的有机硅保护基，这一特点使其可以按比例放大。 通过使用3,5可实现阿拉伯呋喃糖衍生物中3,5-二醇系统和2-羟基的有效区分，这对于制备可用于合成分枝杆菌阿拉伯半乳聚糖和lipoarabinomannan的核苷类似物和寡糖片段的结构单元是必需的。二-
• Ring opening of acylated β-d-arabinofuranose 1,2,5-orthobenzoates with nucleophiles allows access to novel selectively-protected arabinofuranose building blocks
  作者：Nikita M. Podvalnyy、Sergey L. Sedinkin、Polina I. Abronina、Alexander I. Zinin、Ksenia G. Fedina、Vladimir I. Torgov、Leonid O. Kononov

  DOI：10.1016/j.carres.2010.11.002

  日期：2011.1

  beta-D-Arabinofuranose 1,2,5-orthobenzoates with 3-O-acetyl, 3-O-benzoyl, and 3-O-chloroacetyl groups were prepared in an efficient manner starting from readily available crystalline methyl 2,3,5-tri-O-benzoyl-alpha-D-arabinofuranoside, and ring-opening reactions of these compounds with O- and S-nucleophiles were studied. Optimized conditions leading to the formation of the respective monosaccharide adducts (up to 96% isolated yields) and to alpha-(1 -> 5)-linked disaccharide thioglycosides with 5'-OH unprotected (up to 30% isolated yields) were found. Basing on these results, a novel approach for effective differentiation of 3,5-diol system and 2-hydroxy group in arabinofuranose thioglycosides was proposed. The selectively protected derivatives prepared are valuable building blocks for the assembly of linear and branched oligoarabinofuranosides. (C) 2010 Elsevier Ltd. All rights reserved.