allyl 6-O-trityl-α-D-mannopyranoside | 93381-66-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 三苯基化合物
• 英文名称: allyl 6-O-trityl-α-D-mannopyranoside
• 英文别名: (2S,3S,4S,5S,6R)-2-prop-2-enoxy-6-(trityloxymethyl)oxane-3,4,5-triol
• CAS: 93381-66-9
• 化学式: C₂₈H₃₀O₆
• 分子量: 462.543
• InChiKey: SMNUMGQSKFVLET-VKINHPFQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  34
• 可旋转键数：
  9
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  88.4
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  allyl 6-O-trityl-α-D-mannopyranoside 在 sodium hydride 、 溶剂黄146 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 1.83h， 生成 allyl 2,3,4-tri-O-benzyl-α-D-mannopyranoside
  参考文献：
  名称：

  使用半缩醛糖衍生物进行糖基化：O-α-D-鼠李糖基-(1→3)-O-α-D-鼠李糖基-(1→2)-d-鼠李糖和O-α-D-Tyvelosyl-(1→3)的合成)-O-α-D-甘露糖基-(1→4)-L-鼠李糖

  摘要：

  O-α-D-吡喃鼠李糖基-(1→3)-O-α-D-吡喃鼠李糖基-(1→2)-D-吡喃鼠李糖，假单胞菌的 O-特异性多糖 (OPS) 的重复三糖，和 O- α-D-tyvelopyranosyl-(1→3)-O-α-D-mannopyranosyl-(1→4)-L-rhamnopyranosyl-(1→4)-L-rhamnopyranose 是组成伤寒沙门氏菌 OPS 的三糖，通过使用半缩醛原位激活糖基化反应糖衍生物。烯丙基 2,4-二-O-苄基-α-D-吡喃鼠李糖苷是通过烯丙基 α-D-吡喃甘露糖苷的直接二三苯甲基化制备的。3-O-Acetyl-2,4-di-O-benzyl-D-rhamnopyranose 用作 D-tyvelose（3,6-dideoxy-D-arabino-hexose, 3,6-dideoxy- D-mannopyranose, 3-deoxy-D-rhamnose)

  DOI：

  10.1246/bcsj.76.1409
• 作为产物：
  描述：

  D-甘露糖 在 乙酰氯 作用下， 以 吡啶 为溶剂， 反应 17.0h， 生成 allyl 6-O-trityl-α-D-mannopyranoside
  参考文献：
  名称：

  合成用于大肠杆菌，白色念珠菌和酿酒酵母细胞表面d-甘露聚糖的非还原端序列的线性d-甘露糖戊糖模型

  摘要：

  摘要以区域和立体控制的方式合成线性d-甘露寡糖，即O-α-Man-（1→3）-O-α-Man-（1→2）-O-α- Man-（1→2）-O-α-Man-（1→2）-α-Man，对应于大肠杆菌，白色念珠菌和酿酒酵母细胞表面d-甘露聚糖的部分结构进行说明。

  DOI：

  10.1016/0008-6215(85)85150-8

文献信息

• A new approach to construct full-length glycosylphosphatidylinositols of parasitic protozoa and [4-deoxy-Man-III]-GPI analogues
  作者：Asif Ali、D. Channe Gowda、Ram A. Vishwakarma

  DOI：10.1039/b414119a

  日期：——

  A new [2 + 2 + 2] approach to construct GPI molecules through the efficient synthesis of glucosamine-inositol and tetramannose intermediates led to a total synthesis of a GPI-anchor of Trypanosoma cruzi, and also afforded a key intermediate for the synthesis of valuable [4-deoxy-Man-III]-GPI analogues.

  通过高效合成葡糖胺-肌醇和四甘露糖中间体，一种新的[2+2+2]方法构建GPI分子，实现了Trypanosoma cruzi的GPI锚的完全合成，并提供了一种合成有价值[4-脱氧-甘露糖-III]-GPI类似物所需的关键中间体。
• Total synthesis of the fully lipidated glycosylphosphatidylinositol (GPI) anchor of malarial parasite Plasmodium falciparum
  作者：Asif Ali、Ram A. Vishwakarma

  DOI：10.1016/j.tet.2010.04.014

  日期：2010.6

  We report a new and convergent strategy for the total synthesis of fully lipidated glycosylphosphatidylinositol (GPI) anchor, the major pro-inflammatory factor of malarial parasite (Plasmodium falciparum). The key features of our approach include, the access to the key glucosamine–inositol intermediate by a novel route without a priori resolution of myo-inositol, convergent assembly of the tetramannose

  我们报告了完全脂化的糖基磷脂酰肌醇（GPI）锚，疟疾寄生虫（恶性疟原虫）的主要促炎因子的总合成的一种新的和会聚的策略。我们方法的关键特征包括：无需先验解决肌醇就可通过新颖途径获得关键的氨基葡萄糖-肌醇中间体，四甘露糖聚糖结构域的收敛组装，可将三种脂肪酸放置在所需脂肪酸中的灵活性最后步骤中的顺序，并有机会构建GPI类似物/模拟物，以探究疟原虫中GPI锚定途径的生物合成，免疫学和细胞生物学。
• Highly Efficient and Practical Synthesis of 3,6-Branched Oligosaccharides
  作者：Yuguo Du、Meimei Zhang、Fanzuo Kong

  DOI：10.1021/ol000243w

  日期：2000.11.1

  [reaction: see text] A one-pot formation of the 3- and 6-OH differentially protected sugar synthon was described. A mannopyranosyl pentasaccharide and a glucopyranosyl hexasaccharide were prepared employing this new finding.

  [反应：见正文]描述了3-锅和6-OH差异保护的糖合成子的一锅形成。利用这一新发现制备了甘露吡喃糖基五糖和葡糖吡喃糖基六糖。
• Novel template-assembled oligosaccharide clusters as epitope mimics for HIV-neutralizing antibody 2G12. Design, synthesis, and antibody binding study
  作者：Jingsong Wang、Hengguang Li、Guozhang Zou、Lai-Xi Wang

  DOI：10.1039/b702961f

  日期：——

  The synthesis of a new class of template-assembled oligomannose clusters as the mimics of the epitope of the HIV-neutralizing antibody 2G12 is described. The novel oligomannose clusters were successfully assembled on a cyclic decapeptide template using the Cu(I)-catalyzed 1,3-dipolar cycloaddition of azides to alkynes by introducing four units of a synthetic D1 arm tetrasaccharide (Manα1,2Manα1,2Manα1,3Manα-) of high-mannose N-glycan on one face of the template and two T-helper epitope peptides on the other face of the template. Their binding to human antibody 2G12 was studied using surface plasmon resonance (SPR) technology. It was found that while the synthetic monomeric D1 arm oligosaccharide and its fluorinated derivative interacted with 2G12 only weakly, the corresponding template-assembled oligosaccharide clusters showed high affinity to antibody 2G12, indicating a clear clustering effect in 2G12 recognition. Interestingly, the fluorinated D1 arm cluster, in which the 6-OH of the terminal mannosyl residue was replaced with a fluorine atom, showed a distinct kinetic model in 2G12 binding as compared with the cluster of the natural D1 arm oligosaccharides. The oligosaccharide clusters with varied length of spacer demonstrated different affinity to 2G12, suggesting that an appropriate spatial orientation of the sugar chains in the cluster was crucial for high affinity binding to the antibody 2G12. It was also found that the introduction of two T-helper epitopes onto the template did not affect the structural integrity of the oligomannose cluster. The novel synthetic glycoconjugates represent a new type of immunogen that may be able to raise carbohydrate-specific neutralizing antibodies against HIV-1.

  描述了一种新型模板组装的寡甘露聚糖簇的合成，该簇模仿了HIV中和抗体2G12的表位。这些新颖的寡甘露聚糖簇成功地在一个环状十肽模板上组装，采用了铜(I)催化的叠氮化物与炔烃的1,3-极性环加成反应，通过在模板的一侧引入四个单位的合成D1臂四糖（Manα1,2Manα1,2Manα1,3Manα-）和在另一侧引入两个T辅助表位肽。使用表面等离子共振（SPR）技术研究了它们与人抗体2G12的结合。研究发现，虽然合成的单体D1臂寡糖及其氟化衍生物与2G12的相互作用非常弱，但相应的模板组装的寡糖簇对抗体2G12显示出高亲和力，表明在2G12识别中存在明显的聚集效应。有趣的是，氟化D1臂簇中末端甘露糖残基的6-OH被氟原子取代时，与天然D1臂寡糖簇相比，其在与2G12结合时展现出明显不同的动力学模型。具有不同长度间隔链的寡糖簇对2G12的亲和力表现出不同，表明聚糖链在簇中的适当空间取向对于与抗体2G12的高亲和力结合至关重要。研究还发现，在模板上引入两个T辅助表位并没有影响寡甘露聚糖簇的结构完整性。这些新颖的合成糖 conjugates 代表了一种新型免疫原，可能能够引发针对HIV-1的特异性中和抗体。
• Automated Solution-Phase Synthesis of <i>S</i>-Glycosides for the Production of Oligomannopyranoside Derivatives
  作者：Mallory K. Kern、Nicola L. B. Pohl

  DOI：10.1021/acs.orglett.0c01236

  日期：2020.6.5

  report the first development of methods for the site-selective incorporation of S-linkages into automated solution-phase oligosaccharide protocols. The protocols were shown to be compatible with the formation of S- or O-glycosides for the synthesis of mannopyranoside trimmers that incorporate both S- and O-linkages to allow the selective incorporation of an S-glycoside in various stages in an automated

  硫代糖苷比其 O-连接对应物更能抵抗酶水解，从而成为基于碳水化合物的治疗开发的有吸引力的目标。我们报告了将 S-连接位点选择性纳入自动化溶液相寡糖方案的方法的首次开发。该方案被证明与S-或O-糖苷的形成相容，用于合成吡喃甘露糖苷修饰物，其结合了S-和O-连接，以允许在自动化程序的各个阶段选择性地掺入S-糖苷。