β-D-mannopyranosyl-(1->4)-β-D-mannopyranosyl-(1->4)-β-D-mannopyranose | 94799-74-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: β-D-mannopyranosyl-(1->4)-β-D-mannopyranosyl-(1->4)-β-D-mannopyranose
• 英文别名: β-1,4-mannotriose；mannotriose；beta-D-Manp-(1->4)-beta-D-Manp-(1->4)-beta-D-Manp；(2S,3S,4S,5S,6R)-2-[(2R,3S,4R,5S,6S)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2R,3S,4R,5S,6R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
• CAS: 94799-74-3
• 化学式: C₁₈H₃₂O₁₆
• 分子量: 504.442
• InChiKey: FYGDTMLNYKFZSV-PMNVVCTGSA-N

物化性质

• 沸点：
  865.2±65.0 °C(Predicted)
• 密度：
  1.80±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -6.9
• 重原子数：
  34
• 可旋转键数：
  7
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  269
• 氢给体数：
  11
• 氢受体数：
  16

反应信息

• 作为产物：
  描述：

  beta-D-吡喃甘露糖 在 甲醇 作用下， 以 水 为溶剂， 反应 34.0h， 生成 β-D-mannopyranosyl-(1->4)-β-D-mannopyranosyl-(1->4)-β-D-mannopyranose
  参考文献：
  名称：

  Syntheses of Alkylβ-d-Mannopyranosides andβ-1, 4-Linked Oligosaccharides Usingβ-Mannosidase fromRhizopus niveus

  摘要：

  当甘露糖与来自Rhizopus niveus的β-甘露糖苷酶一起培养时，β-1,4-连接的甘露寡糖被区域选择性获得。通过使用获得的β-1,4-连接的甘露糖作为供体，与相同的酶进行转糖基化反应，并从各种醇中获得β-连接的烷基糖苷。在以β-1,4-连接的甘露糖作为供体和受体的反应中，通过转糖基化机制获得了β-1,4-连接的甘露寡糖。

  DOI：

  10.1271/bbb.61.164

文献信息

• Fabaceae Polysaccharides. III. Galactomannan from Astragalus cicer seeds
  作者：D. N. Olennikov、A. V. Rokhin

  DOI：10.1007/s10600-010-9558-9

  日期：2010.5

  Seeds of Astragalus cicer L. (Fabaceae) afforded a galactomannan (5.90% yield of seed mass) of molecular weight 1064 kDa, solutions of which had high viscosity [η] 925.5 mL/g and optical activity [α]D +71.9°. The galactomannan consisted of galactose and mannose units in a 1:1.39 ratio. Physicochemical methods established that the main chain of the polysaccharide consisted of 1,4-β-D-mannopyranose units substituted at 72% of the C-6 positions by single α-D-galactopyranose units. The content of variously substituted galactose mannobiose units Man–Man, (Gal)Man–Man/Man–Man(Gal) and (Gal)Man–Man(Gal) in the galactomannan were 18.7, 19.8, and 61.5%, respectively.

  鹰嘴豆黄芪（豆科）的种子中提取出一种半乳甘露聚糖（种子质量的5.90%），分子量为1064 kDa，其溶液具有高粘度[η] 925.5 mL/g和光学活性[α]D +71.9°。该半乳甘露聚糖由半乳糖和甘露糖单元以1:1.39的比例组成。物理化学方法确定，该多糖主链由1,4-β-D-甘露吡喃糖单元组成，其中72%的C-6位置被单个α-D-半乳吡喃糖单元取代。不同取代程度的半乳糖甘露二糖单元Man–Man，（Gal）Man–Man/Man–Man（Gal）和（Gal）Man–Man（Gal）在半乳甘露聚糖中的含量分别为18.7%、19.8%和61.5%。
• Polysaccharides ofPolygonatum. IV. A study of the structure of the glucomannan ofPolygonatum severzovii
  作者：R. K. Rakhmanberdyeva、D. A. Rakhimov、E. S. Kondratenko

  DOI：10.1007/bf00575033

  日期：1982.9
• Syntheses of Alkyl<i>β</i>-<scp>d</scp>-Mannopyranosides and<i>β</i>-1, 4-Linked Oligosaccharides Using<i>β</i>-Mannosidase from<i>Rhizopus niveus</i>
  作者：Hiroshi Fujimoto、Megumi Isomura、Katsumi Ajisaka

  DOI：10.1271/bbb.61.164

  日期：1997.1

  β-1, 4-Linked mannooligosaccharides were obtained regioselectively when mannose was incubated with β-mannosidase from Rhizopus niveus. By use of the obtained β-1, 4-linked mannobiose as a donor, the transglycosylation reaction was done with the same enzyme, and β-linked alkyl glycosides were obtained from various alcohols. In the reaction using the β-1, 4-linked mannobiose as a donor and acceptor, β-l, 4-linked mannooligosaccharides were obtained by a transglycosylation mechanism.

  当甘露糖与来自Rhizopus niveus的β-甘露糖苷酶一起培养时，β-1,4-连接的甘露寡糖被区域选择性获得。通过使用获得的β-1,4-连接的甘露糖作为供体，与相同的酶进行转糖基化反应，并从各种醇中获得β-连接的烷基糖苷。在以β-1,4-连接的甘露糖作为供体和受体的反应中，通过转糖基化机制获得了β-1,4-连接的甘露寡糖。