O-β-D-glucopyranosyl-(1-3)-O-β-D-glucopyranosyl-(1-4)-α-D-glucopyranose | 103881-69-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: O-β-D-glucopyranosyl-(1-3)-O-β-D-glucopyranosyl-(1-4)-α-D-glucopyranose
• 英文别名: Glc(b1-3)Glc(b1-4)a-Glc；(2S,3R,4S,5S,6R)-2-[(2R,3R,4S,5R,6S)-3,5-dihydroxy-2-(hydroxymethyl)-6-[(2R,3S,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-4-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
• CAS: 103881-69-2
• 化学式: C₁₈H₃₂O₁₆
• 分子量: 504.442
• InChiKey: ODDPRQJTYDIWJU-GWEGGBNMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -6.3
• 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

• 作为反应物：
  描述：

  O-β-D-glucopyranosyl-(1-3)-O-β-D-glucopyranosyl-(1-4)-α-D-glucopyranose 、 乙酸酐 在 sodium acetate 作用下， 反应 0.5h， 以78%的产率得到O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-(1-3)-O-(2,4,6-tri-O-acetyl-β-D-glucopyranosyl)-(1-4)-1,2,3,6-tetra-O-acetyl-β-D-glucopyranose
  参考文献：
  名称：

  Synthesis of the tri- and tetra-saccharides related to the fine structures of lichenan and cereal β-d-glucans

  摘要：

  DOI：

  10.1016/s0008-6215(00)90636-0
• 作为产物：
  描述：

  苄基2,3,6-三-O-苄基吡喃己糖苷 在 palladium on activated charcoal 、 silver trifluoromethanesulfonate 4 A molecular sieve 、 氢气 、 sodium methylate 作用下， 以 甲醇 、 溶剂黄146 、 1,2-二氯乙烷 为溶剂， 25.0 ℃ 、101.33 kPa 条件下， 反应 2.0h， 生成 O-β-D-glucopyranosyl-(1-3)-O-β-D-glucopyranosyl-(1-4)-α-D-glucopyranose
  参考文献：
  名称：

  Synthesis of the tri- and tetra-saccharides related to the fine structures of lichenan and cereal β-d-glucans

  摘要：

  DOI：

  10.1016/s0008-6215(00)90636-0

文献信息

• Chemoenzymic synthesis of (1→3,1→4)-β-D-glucooligosaccharides for subsite mapping of (1→3,1→4)-β-D-glucan endohydrolases
  作者：Maria Hrmova、Geoffrey B. Fincher、Josep-Luis Viladot、Antoni Planas、Hugues Driguez

  DOI：10.1039/a804711a

  日期：——

  A series of unsubstituted (1→3,1→4)-β-D-glucooligosaccharides, designed for subsite mapping in which the number of glucosyl-binding subsites and the subsite-binding/transition state activation affinities at individual subsites of plant and bacterial (1→3,1→4)-β-D-glucan 4-glucanohydrolases (EC 3.2.1.73) can be determined, has been synthesised through chemical and enzymic procedures. A recombinant (1→3,1→4)-β-D-glucan 4-glucanohydrolase from Bacillus licheniformis has been used in organic media to catalyse the condensation of 3-O-β-D-glucopyranosyl-β-D-glucopyranosyl fluoride (Glcβ3GlcβF, compound 1) with cellobiose (Glcβ4Glc, 2), cellotriose (Glcβ4Glcβ4Glc, 3), cellotetraose (Glcβ4Glcβ4Glcβ4Glc, 4) and cellopentaose (Glcβ4Glcβ4Glcβ4Glcβ4Glc, 5), to produce the (1→3,1→4)-β-D-glucooligosaccharides, Glcβ3Glcβ4Glcβ4Glc 6, Glcβ3Glcβ4Glcβ4Glcβ4Glc 7, Glcβ3Glcβ4Glcβ4Glcβ4Glcβ4Glc 8, Glcβ3Glcβ4Glcβ4Glcβ4Glcβ4Glcβ4Glc 9. Synthesised oligosaccharides 6–9 were isolated in yields of 15–45%, compared with compound 1. In a second series of syntheses, a cellodextrin phosphorylase (EC 2.4.1.49) from Clostridium thermocellum was used to sequentially transfer glucosyl residues from α-D-glucopyranosyl phosphate 10 to the 4-position of the non-reducing terminus of the trisaccharide Glcβ3Glcβ4Glc 11, to generate the (1→3,1→4)-β-D-glucooligosaccharides, Glcβ4Glcβ3Glcβ4Glc 12, Glcβ4Glcβ4Glcβ3Glcβ4Glc 13, Glcβ4Glcβ4Glcβ4Glcβ3Glcβ4Glc 14 in 14, 10 and 5% yield, respectively, from compound 11.

  一系列未取代的(1→3,1→4)-β-D-葡萄糖寡糖被合成，用于亚位点的映射，以确定植物和细菌(1→3,1→4)-β-D-葡聚糖4-葡聚糖水解酶（EC 3.2.1.73）在各个亚位点的葡萄糖结合亚位点的数量以及亚位点结合/过渡态激活亲和力。这些寡糖是通过化学和酶促程序合成的。使用来自枯草芽孢杆菌的重组(1→3,1→4)-β-D-葡聚糖4-葡聚糖水解酶在有机介质中催化3-O-β-D-葡萄糖基-β-D-葡萄糖基氟化物（Glcβ3GlcβF，化合物1）与纤双糖（Glcβ4Glc，2）、纤三糖（Glcβ4Glcβ4Glc，3）、纤四糖（Glcβ4Glcβ4Glcβ4Glc，4）和纤五糖（Glcβ4Glcβ4Glcβ4Glcβ4Glc，5）的缩合反应，生成(1→3,1→4)-β-D-葡萄糖寡糖，Glcβ3Glcβ4Glcβ4Glc 6、Glcβ3Glcβ4Glcβ4Glcβ4Glc 7、Glcβ3Glcβ4Glcβ4Glcβ4Glcβ4Glc 8、Glcβ3Glcβ4Glcβ4Glcβ4Glcβ4Glcβ4Glc 9。合成的寡糖6-9的收率为15-45%，与化合物1相比。在第二系列合成中，使用来自嗜热梭菌的纤维二糖磷酸酶（EC 2.4.1.49）将α-D-葡萄糖基磷酸10的葡萄糖基残基顺序转移到三糖Glcβ3Glcβ4Glc 11非还原末端的4位，生成(1→3,1→4)-β-D-葡萄糖寡糖，Glcβ4Glcβ3Glcβ4Glc 12、Glcβ4Glcβ4Glcβ3Glcβ4Glc 13、Glcβ4Glcβ4Glcβ4Glcβ3Glcβ4Glc 14，分别从化合物11中获得14%、10%和5%的产率。
• Synthesis of the tri- and tetra-saccharides related to the fine structures of lichenan and cereal β-d-glucans
  作者：Ken'ichi Takeo、Yukiko Suzuki

  DOI：10.1016/s0008-6215(00)90636-0

  日期：1986.3