methyl (2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1<*>3)-4,6-di-O-acetyl-2-azido-2-deoxy-β-D-galactopyranoside | 96016-11-4

• 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: methyl (2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1<*>3)-4,6-di-O-acetyl-2-azido-2-deoxy-β-D-galactopyranoside
• 英文别名: Methyl-4,6-di-O-acetyl-2-azido-2-desoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-β-D-galactopyranosid；[(2R,3R,4R,5R,6R)-3-acetyloxy-5-azido-6-methoxy-4-[(2R,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyoxan-2-yl]methyl acetate
• CAS: 96016-11-4
• 化学式: C₂₅H₃₅N₃O₁₆
• 分子量: 633.563
• InChiKey: CWKJPTUQPITNOU-AQNRWGFMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  44
• 可旋转键数：
  18
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.76
• 拓扑面积：
  209
• 氢给体数：
  0
• 氢受体数：
  18

反应信息

• 作为反应物：
  描述：

  methyl (2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1<*>3)-4,6-di-O-acetyl-2-azido-2-deoxy-β-D-galactopyranoside 在 palladium on activated charcoal 硫酸 、 三氟化硼乙醚 、 氢气 、 溶剂黄146 、 乙二胺 、 三乙胺 、 4,4'-二氨基二苯乙烯-2,2'-二磺酸 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 0.25h， 生成 O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1->3')-(2'-acetamido-2'-deoxy-4',6'-di-O-acetyl-α-D-galactopyranosyl)-N-hydroxyphthalimide
  参考文献：
  名称：

  Chemoselectively template-assembled glycopeptide presenting clustered cancer related T-antigen

  摘要：

  The first synthesis of the tumor-associated alpha-aminooxy T-antigen 1, a relevant recognition motif for the direct construction of multitopic carbohydrate architecture of biological interest is described. The usefulness of this building block is emphasized with the efficient preparation through oxime ligation of a neoglycopeptide cluster, which is readily suitable for evaluating the role of multivalency in antigen presentation to the immune system from an anticancer vaccine perspective. (C) 2003 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2003.10.126
• 作为产物：
  描述：

  methyl 2-azido-2-deoxy-D-galactopyranoside 在 吡啶 、 三氟甲磺酸三甲基硅酯 、 对甲苯磺酸 、 溶剂黄146 作用下， 以 硝基甲烷 、 二氯甲烷 为溶剂， 生成 methyl (2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1<*>3)-4,6-di-O-acetyl-2-azido-2-deoxy-β-D-galactopyranoside
  参考文献：
  名称：

  Chemoselectively template-assembled glycopeptide presenting clustered cancer related T-antigen

  摘要：

  The first synthesis of the tumor-associated alpha-aminooxy T-antigen 1, a relevant recognition motif for the direct construction of multitopic carbohydrate architecture of biological interest is described. The usefulness of this building block is emphasized with the efficient preparation through oxime ligation of a neoglycopeptide cluster, which is readily suitable for evaluating the role of multivalency in antigen presentation to the immune system from an anticancer vaccine perspective. (C) 2003 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2003.10.126

文献信息

• Lewissäure-katalysierte synthesen von di- und trisaccharid-sequenzen der O- und N-glycoproteine. Anwendung von trimethylsilyltrifluoromethanesulfonat
  作者：Hans Paulsen、Michael Paal

  DOI：10.1016/0008-6215(84)85005-3

  日期：1984.12

  Abstract In the presence of trimethylsilyltrifluoromethanesulfonate as Lewis acid catalyst, β-acetates reacted, as glycosyl donors and with neighboring-group participation, with secondary hydroxyl groups of saccharides having low reactivity to give β-glycosidically linked di- and oligo-saccharides in high yields. The protecting groups of both compounds of the reaction had to be stable under acid conditions

  摘要在三甲基甲硅烷基三氟甲磺酸酯作为路易斯酸催化剂的存在下，β-乙酸酯作为糖基供体并与邻近基团反应，与低反应性的糖的仲羟基反应，从而以高收率得到β-糖苷键合的二糖和寡糖。该反应的两种化合物的保护基必须在酸性条件下是稳定的。因此，1,2,3,4,6-戊基-O-乙酰基-β-d-吡喃半乳糖与甲基2-叠氮基-4,6-二-O-苯甲酰基-2-脱氧-β-d-的反应半乳糖吡喃糖苷以83％的收率得到甲基2-叠氮基-2,6-二-O-苯甲酰基-2-脱氧-3-O-（2,3,4,6-四-O-乙酰基-β-d- （吡喃半乳糖）-β-d-吡喃半乳糖苷是有用的构建单元。比较了路易斯酸催化和Koenigs-Knorr条件下的糖苷反应。
• Blocksynthese von O-glycopeptiden und anderen T-antigen strukturen
  作者：Hans Paulsen、Michael Paal

  DOI：10.1016/0008-6215(84)85006-5

  日期：1984.12

  Abstract Under the conditions of in situ anomerisation, the 2-azido-4,6-di- O -benzoyl-2-deoxy-3- O -(2,3,4,6-tetra- O -acetyl-β- d -galactopyranosyl)-α- d -galactopyranosyl bromide reacted directly and with high selectivity with the reactive hydroxyl groups of l -serine and l -threonine derivatives to form α-glycosidically-linked products. Thus, the glycopeptides containing l -serine and l -threonine

  摘要在原位异构化条件下，2-叠氮基-4,6-二-O-苯甲酰基-2-脱氧-3-O-（2,3,4,6-四-O-乙酰基-β-d -（半乳糖吡喃糖基）-α-d-半乳糖吡喃糖基溴与1-丝氨酸和1-苏氨酸衍生物的反应性羟基高选择性地直接反应，形成α-糖苷连接的产物。因此，更容易获得包含1-丝氨酸和1-苏氨酸的糖肽。二糖嵌段也可以与其他反应性羟基化合物偶联，以得到包含T受体的化合物。
• Synthesis of the glycosyl amino acids Nα-Fmoc-Ser[Ac4-β-d-Gal p-(1 → 3)-Ac2-α-d-GalN3 p]-OPfp and Nα-Fmoc-Thr[Ac4-β-d-Gal p-(1 → 3)-Ac2-α-d-GalN3 p]-OPfp and the application in the solid-phase peptide synthesis of multiply glycosylated mucin peptides with Tn and T antigenic structures
  作者：Hans Paulsen、Stefan Peters、Tim Bielfeldt、Morten Meldal、Klaus Bock

  DOI：10.1016/0008-6215(94)00292-n

  日期：1995.3

  -β- d -Gal p-(1 → 3)- Ac 2 -α- d -GalN 3 p]- OPfp and N α - Fmoc-Thr[Ac 4 -β- d -Gal p-(1 → 3)- Ac 2 -α- d -GalN 3 p]- OPfp were synthesized. Glycosylation of Nα-Fmoc-Ser-OPfp or Nα-Fmoc-Thr-OPfp with protected β- d -Gal -(1 → 3)- d -GalN 3 donors afforded the glycosyl amino acids containing an activated C-terminus which could be utilized directly for solid-phase glycopeptide synthesis. The transformation

  摘要两个新的糖基氨基酸Nα-Fmoc-Ser [Ac 4-β-d -Gal p-（1→3）-Ac 2-α-d -GalN 3 p]-OPfp和Nα-Fmoc-Thr [合成了Ac 4-β-d -Gal p-（1→3）-Ac 2-α-d -GalN 3 p] -OPfp。Nα-Fmoc-Ser-OPfp或Nα-Fmoc-Thr-OPfp的糖基化与受保护的β-d -Gal-（1→3）-d -GalN 3供体进行糖基化，得到的糖基氨基酸含有一个活化的C末端，可以是直接用于固相糖肽合成。在合成结束时，通过用硫代乙酸处理与聚合物结合的糖肽，可以定量实现2-叠氮基向乙酰氨基衍生物的转化。八种三糖基化粘蛋白肽的组装证明了该策略的多功能性，这些肽是通过多柱技术同时合成的。