O-(methyl 2,3-di-O-benzyl-4-O-(chloroacetyl)-β-D-glucopyranosyluronate)-(1->4)-3-O-acetyl-1,6-anhydro-2-azido-2-deoxy-β-D-glucopyranose | 87907-02-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: O-(methyl 2,3-di-O-benzyl-4-O-(chloroacetyl)-β-D-glucopyranosyluronate)-(1->4)-3-O-acetyl-1,6-anhydro-2-azido-2-deoxy-β-D-glucopyranose
• 英文别名: O-(methyl 2,3-di-O-benzyl-4-O-chloroacetyl-β-D-glucopyranosyluronate)-(1→4)-2-O-acetyl-1,6-anhydro-2-azido-2-deoxy-β-D-glucopyranose；3-O-acetyl-1,6-anhydro-2-azido-4-O-2,3-di-O-benzyl-4-O-chloroacetyl-β-D-glucopyranosyl methyluronate-β-D-glucopyranose；O-[methyl 2,3-di-O-benzyl-4-O-(chloroacetyl)-β-D-glucopyranosyluronate]-(1->4)-3-O-acetyl-1,6-anhydro-2-azido-2-deoxy-β-D-glucopyranose；methyl (2S,3S,4S,5R,6R)-6-[[(1R,2S,3R,4R,5R)-3-acetyloxy-4-azido-6,8-dioxabicyclo[3.2.1]octan-2-yl]oxy]-3-(2-chloroacetyl)oxy-4,5-bis(phenylmethoxy)oxane-2-carboxylate
• CAS: 87907-02-6
• 化学式: C₃₁H₃₄ClN₃O₁₂
• 分子量: 676.077
• InChiKey: CPFYNGCVOMPHAB-LJUJDXINSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  47
• 可旋转键数：
  16
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.52
• 拓扑面积：
  149
• 氢给体数：
  0
• 氢受体数：
  14

反应信息

• 作为反应物：
  描述：

  O-(methyl 2,3-di-O-benzyl-4-O-(chloroacetyl)-β-D-glucopyranosyluronate)-(1->4)-3-O-acetyl-1,6-anhydro-2-azido-2-deoxy-β-D-glucopyranose 在 溴化钛(IV) 、 三氟乙酸 作用下， 以 二氯甲烷 、 乙酸乙酯 为溶剂， 反应 58.0h， 生成 (2S,3S,4S,5R,6R)-6-((2R,3S,4R,5R,6R)-4-Acetoxy-2-acetoxymethyl-5-azido-6-bromo-tetrahydro-pyran-3-yloxy)-4,5-bis-benzyloxy-3-(2-chloro-acetoxy)-tetrahydro-pyran-2-carboxylic acid methyl ester
  参考文献：
  名称：

  Synthesis of methyl glycoside derivatives of tri- and penta-saccharides related to the antithrombin III-binding sequence of heparin, employing cellobiose as a key starting-material

  摘要：

  Two key synthons for the title pentasaccharide derivative, methyl O-(methyl 2-O-benzoyl-3-O-benzyl-alpha-L-idopyranosyluronate)-(1----4)-6-O-acetyl- 2-azido - 3-O- benzyl-2-deoxy-beta-D-glucopyranoside and O-(methyl 2,3-di-O-benzyl-4-O- chloroacetyl-beta-D-glucopyranosyluronate)-(1----4)-3,6-di-O-acetyl-2-az ido-2- deoxy-alpha-D- glucopyranosyl bromide, were prepared from a common starting material, cellobiose. They were coupled to give a tetrasaccharide derivative that underwent O-dechloroacetylation to the corresponding glycosyl acceptor. Its condensation with the known 6-O-acetyl-2-azido-3,4-di-O-benzyl-2-deoxy-alpha-D-glucopyranosyl bromide afforded a 77% yield of suitably protected pentasaccharide, methyl O-(6-O- acetyl-2-azido-3,4-di-O-benzyl-2-deoxy-alpha-D-glucopyranosyl)-(1----4)- O- (methyl 2,3- di-O-benzyl-beta-D-glucopyranosyluronate)-(1----4)-O-(3,6-di-O-acetyl-2- azido-2 - deoxy-alpha-D-glucopyranosyl)-(1----4)-O-(methyl 2-O-benzoyl-3-O-benzyl-alpha-L- idopyranosyluronate)- (1----4)-6-O-acetyl-2-azido-3-O-benzyl-2-deoxy-beta-D-glucopyranoside. Sequential deprotection and sulfation gave the decasodium salt of methyl O-(2- deoxy-2-sulfamido-6-O-sulfo-alpha-D-glucopyranosyl)-(1----4)-O-(be ta-D- glucopyranosyl-uronic acid)-(1----4)-O-(2-deoxy-2-sulfamido-3,6-di-O-sulfo-alpha-D-gluco pyranosyl)- (1----4)-O-(2-O-sulfo-alpha-L-idopyranosyluronic acid)-(1----4)-2-deoxy-2- sulfamido-6-O- sulfo-beta-D-glucopyranoside (3). In a similar way, the trisaccharide derivative, the hexasodium salt of methyl O-(2-deoxy-2-sulfamido-6-O-sulfo-alpha-D- glucopyranosyl)- (1----4)-O-(beta-D-glucopyranosyluronic acid)-(1----4)-2-deoxy-2-sulfamido-3,6- di-O- sulfo-alpha-D-glucopyranoside (4) was synthesized from methyl O-(6-O-acetyl-2- azido- 3,4-di-O-benzyl-2-deoxy-alpha-D-glucopyranosyl)-(1----4)-O-(methyl 2,3-di-O- benzyl-beta- D-glucopyranosyluronate)-3,6-di-O-acetyl-2-azido-2-deoxy-alpha-D- glucopyranoside. The pentasaccharide 3 binds strongly to antithrombin III with an association constant almost equivalent to that of high-affinity heparin, but the trisaccharide 4 appears not to bind.

  DOI：

  10.1016/s0008-6215(00)90842-5
• 作为产物：
  描述：

  a-无水葡萄糖酯 在 硫酸 、 溶剂黄146 吡啶 、 咪唑 、 水 、 氢溴酸 、 sodium methylate 、 碳酸氢钠 、 溶剂黄146 、 三氟乙酸 、 mercury dibromide 作用下， 以 甲醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 11.5h， 生成 O-(methyl 2,3-di-O-benzyl-4-O-(chloroacetyl)-β-D-glucopyranosyluronate)-(1->4)-3-O-acetyl-1,6-anhydro-2-azido-2-deoxy-β-D-glucopyranose
  参考文献：
  名称：

  PROCESS FOR PREPARING HEPARINOIDS AND INTERMEDIATES USEFUL IN THE SYNTHESIS THEREOF

  摘要：

  公开了合成因子Xa抗凝剂磺达肝癸钠及其相关化合物的方法。提供了受保护的五糖中间体以及通过一系列去保护和磺化反应将受保护五糖中间体转化为磺达肝癸钠的工业规模生产的高效和可扩展过程。

  公开号：

  US20130005954A1

文献信息

• Total Synthesis of Anticoagulant Pentasaccharide Fondaparinux
  作者：Tiehai Li、Hui Ye、Xuefeng Cao、Jiajia Wang、Yonghui Liu、Lifei Zhou、Qiang Liu、Wenjun Wang、Jie Shen、Wei Zhao、Peng Wang

  DOI：10.1002/cmdc.201400019

  日期：2014.5

  The anticoagulant pentasaccharide fondaparinux was synthesized using an improved and optimized synthetic strategy including a convergent [3+2] coupling approach, orthogonal protecting groups and various glycosyl donors. The new methods of glycosylation were also used for controlling the stereochemical configuration and improving the yield of the glycosylation. In addition, HPLC and NMR methods to monitor

  抗凝五糖磺达肝素是使用改进和优化的合成策略合成的，包括收敛的[3 + 2]偶联方法，正交保护基和各种糖基供体。糖基化的新方法也用于控制立体化学构型和提高糖基化的产率。另外，采用HPLC和NMR方法监测磺达肝素的全合成过程。这项工作在相关文献的基础上为磺达肝素的合成和分析提供了详尽的阐述，并为肝素样低聚糖的合成提供了丰富的信息。
• Synthesis of a heparin pentasaccharide fragment with a high affinity for antithrombin III employing cellobiose as a key starting material
  作者：Yoshitaka Ichikawa、Ryuji Monden、Hiroyoshi Kuzuhara

  DOI：10.1016/s0040-4039(00)84054-x

  日期：1986.1

  The methodology for regio- and stereoselective modifications and transformations of cellobiose was established, and applied to the total synthesis of a heparin pentasaccharide fragment having a high affinity for antithrombin III.

  建立了纤维二糖的区域和立体选择性修饰和转化的方法，并将其用于对抗凝血酶III具有高亲和力的肝素五糖片段的全合成。
• Total synthesis of a heparin pentasaccharide fragment having high affinity for antithrombin III
  作者：Pierre Sinaÿ、Jean-Claude Jacquinet、Maurice Petitou、Philippe Duchaussoy、Isidore Lederman、Jean Choay、Giangiacomo Torri

  DOI：10.1016/0008-6215(84)85236-2

  日期：1984.9
• Synthesis, from cellobiose, of a trisaccharide closely related to the GlcNAc→GlcA→GlcN segment of the anti-thrombin-binding sequence of heparin
  作者：Yoshitaka Ichikawa、Ryuji Ichikawa、Hiroyoshi Kuzuhara

  DOI：10.1016/s0008-6215(00)90458-0

  日期：1985.9

  O-(2-Deoxy-2-sulfamido-6-O-sulfo-alpha-D-glucopyranosyl)-(1----4)- O-(beta-D- glucopyranosyluronic acid)-(1----4)-1,6-anhydro-2-deoxy-2-sulfamido-6-O-sulfo-beta-D-gl ucopyranose pentasodium salt (14) was synthesized as a heparin-related oligosaccharide. The glycosyl acceptor (derived from cellobiose) and a glycosyl donor, 6-O-acetyl-2-azido-3,4-di-O-benzyl-2-deoxy-alpha-D-glucopyranosyl bromide, were coupled in the presence of mercuric bromide and molecular sieves 4A to afford a 69% yield of fully protected trisaccharide, namely, O-(6-O-acetyl-2-azido-3,4-di-O-benzyl-2-deoxy-alpha-D-glucopyranosyl)-(1 ----4)- O-(methyl 2,3-di-O-benzyl-beta-D-glucopyranosyluronate)-(1----4)-3-O-acetyl- 1,6-anhydro-2 - azido-2-deoxy-beta-D-glucopyranose (10), which was converted into the partially sulfated trisaccharide 14. Compound 10 also underwent acetolysis to afford the glycosyl acetate, for further elongation of the glycosyl chain.