(2R,3R,4S,5R,6R)-2-Hydroxymethyl-6-((2R,3S,4S,5R,6R)-3,4,5-tris-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-3,4,5-triol | 108671-41-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (2R,3R,4S,5R,6R)-2-Hydroxymethyl-6-((2R,3S,4S,5R,6R)-3,4,5-tris-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-3,4,5-triol
• 英文别名: methyl 2,3,4-tri-O-benzyl-6-O-α-D-mannopyranosyl-α-D-mannopyranoside
• CAS: 108671-41-6
• 化学式: C₃₄H₄₂O₁₁
• 分子量: 626.701
• InChiKey: QVTHJILFYWAGCT-CKVIVAQMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.93
• 重原子数：
  45.0
• 可旋转键数：
  14.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  145.53
• 氢给体数：
  4.0
• 氢受体数：
  11.0

反应信息

• 作为反应物：
  描述：

  (2R,3R,4S,5R,6R)-2-Hydroxymethyl-6-((2R,3S,4S,5R,6R)-3,4,5-tris-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-3,4,5-triol 在 palladium on activated charcoal 氢气 作用下， 以 乙醇 、 溶剂黄146 为溶剂， 以91%的产率得到甲基 6-O-alpha-D-甘露糖基-alpha-D-吡喃甘露糖苷
  参考文献：
  名称：

  Lysosomal-enzyme targeting: the phosphorylation of synthetic d-mannosyl saccharides by UDP-N-acetylglucosamine:lysosomal-enzyme N-acetylglucosaminephosphotransferase from rat-liver microsomes and fibroblasts

  摘要：

  Phosphorylation of the D-mannose residues of lysosomal enzymes is essential for the uptake and intracellular transport of these enzymes to lysosomes. The GlcNAc-P-transferase which is involved in the phosphorylation reaction seems to recognize a signal, probably a protein conformation, common to many lysosomal enzymes. To evaluate the role of the carbohydrate portion of the enzyme in these phosphorylation reactions, the acceptor specificity of GlcNAc-P-transferase from rat-liver microsomes and fibroblasts was examined with the aid of synthetic D-mannosyl disaccharides and derivatives that are closely related to the high-mannose type of oligosaccharides. Four methyl D-mannobiosides were synthesized, and their structures were established by 13C-n.m.r. spectroscopy. Of all the D-mannosyl saccharides tested, alpha-D-Man-(1----2)-alpha-D-Man-(1----OMe) was found to be the best acceptor, thereby suggesting that oligosaccharide structure may also have a role to play in recognition by this enzyme.

  DOI：

  10.1016/s0008-6215(00)90298-2
• 作为产物：
  描述：

  2,3,4,6-四-O-乙酰基-1-溴-Alpha-D-甘露糖 在 4 A molecular sieve 、 sodium methylate 、 氰化汞 、 mercury dibromide 作用下， 以 甲醇 、 乙腈 为溶剂， 反应 8.0h， 生成 (2R,3R,4S,5R,6R)-2-Hydroxymethyl-6-((2R,3S,4S,5R,6R)-3,4,5-tris-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-3,4,5-triol
  参考文献：
  名称：

  Lysosomal-enzyme targeting: the phosphorylation of synthetic d-mannosyl saccharides by UDP-N-acetylglucosamine:lysosomal-enzyme N-acetylglucosaminephosphotransferase from rat-liver microsomes and fibroblasts

  摘要：

  Phosphorylation of the D-mannose residues of lysosomal enzymes is essential for the uptake and intracellular transport of these enzymes to lysosomes. The GlcNAc-P-transferase which is involved in the phosphorylation reaction seems to recognize a signal, probably a protein conformation, common to many lysosomal enzymes. To evaluate the role of the carbohydrate portion of the enzyme in these phosphorylation reactions, the acceptor specificity of GlcNAc-P-transferase from rat-liver microsomes and fibroblasts was examined with the aid of synthetic D-mannosyl disaccharides and derivatives that are closely related to the high-mannose type of oligosaccharides. Four methyl D-mannobiosides were synthesized, and their structures were established by 13C-n.m.r. spectroscopy. Of all the D-mannosyl saccharides tested, alpha-D-Man-(1----2)-alpha-D-Man-(1----OMe) was found to be the best acceptor, thereby suggesting that oligosaccharide structure may also have a role to play in recognition by this enzyme.

  DOI：

  10.1016/s0008-6215(00)90298-2

文献信息

• Solvent‐Free Glycosylation from per‐ <i>O</i> ‐Acylated Donors Catalyzed by Methanesulfonic Acid
  作者：Serena Traboni、Emiliano Bedini、Alba Silipo、Giulia Vessella、Alfonso Iadonisi

  DOI：10.1002/ejoc.202101121

  日期：2021.11.8

  A novel glycosylation procedure has been developed, featuring extremely low cost as well as experimental and environmental advantages. It is based on the direct activation of per-O-acetylated (or benzoylated) sugars by 5 mol % of cheap and eco-friendly methanesulfonic acid, under air in the absence of any solvent. Several products, including non-trivial glycosides and disaccharides, can be quickly

  已经开发出一种新的糖基化程序，具有极低的成本以及实验和环境优势。它是基于直接激活per-的Ó在不存在任何溶剂的5摩尔％便宜和生态友好的甲磺酸-acetylated（或苯甲酰化）的糖，在空气下。可以快速获得具有良好 1,2-反式立体选择性的多种产品，包括重要的糖苷和二糖。