methyl 6-O-β-D-glucopyranosyl-β-D-glucopyranoside | 52485-12-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl 6-O-β-D-glucopyranosyl-β-D-glucopyranoside
• 英文别名: β-D-Glcp-(1<*>6)-β-D-GlcpOMe；methyl β-D-gentiobiose；methyl β-gentiobioside；methylβ-gentiobioside；Methyl-6-O-β-D-glucopyranosyl-β-D-glucopyranosid；Methyl β-gentiobiosid；Glc(b1-6)b-Glc1Me；(2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[[(2R,3S,4S,5R,6R)-3,4,5-trihydroxy-6-methoxyoxan-2-yl]methoxy]oxane-3,4,5-triol
• CAS: 52485-12-8
• 化学式: C₁₃H₂₄O₁₁
• 分子量: 356.327
• InChiKey: ZQPVHVKWCGZNDW-NVYKSAHZSA-N

物化性质

• 熔点：
  98 °C
• 沸点：
  644.0±55.0 °C(Predicted)
• 密度：
  1.63±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -4.2
• 重原子数：
  24
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  179
• 氢给体数：
  7
• 氢受体数：
  11

反应信息

• 作为反应物：
  描述：

  methyl 6-O-β-D-glucopyranosyl-β-D-glucopyranoside 生成 [(2R,3R,4S,5R,6R)-3,4,5-trimethoxy-6-[[(2R,3R,4S,5R,6R)-3,4,5,6-tetramethoxyoxan-2-yl]methoxy]oxan-2-yl]methanol
  参考文献：
  名称：

  ASPINALL, GERALD O.;CAPEK, PETER;CARPENTER, ROSHAN C.;SZAFRANEK, JANUSZ, CARBOHYDR. RES., 214,(1991) N, C. 95-105

  摘要：

  DOI：
• 作为产物：
  描述：

  甲基 Β-D-吡喃葡萄糖苷 在 Hypocrea jecorina β-glucosidase 作用下， 以 aq. acetate buffer 为溶剂， 反应 23.0h， 以5.6%的产率得到methyl 6-O-β-D-glucopyranosyl-β-D-glucopyranoside
  参考文献：
  名称：

  Mode of action of a β-(1→6)-glucanase from Penicillium multicolor

  摘要：

  beta-(1 -> 6)-Glucanase from the culture filtrate of Penicillium multicolor LAM7153 was purified by ammonium sulfate precipitation, followed by cation-exchange and affinity chromatography using gentiotetraose (Gen(4)) as ligand. The hydrolytic mode of action of the purified protein on beta-(1 -> 6)-glucan (pustulan) was elucidated in real time during the reaction by HPAEC-PAD analysis. Gentiooligosaccharides (DP 2-9, Gen(2-9)), methyl beta-gentiooligosides (DP 2-6, Gen(2-6) beta-OMe), and p-nitrophenyl beta-gentiooligosides (DP 2-6, Gen(2-6) beta-pNP) were used as substrates to provide analytical insight into how the cleavage of pustulan (DP 320) is actually achieved by the enzyme. The enzyme was shown to completely hydrolyze pustulan in three steps as follows. In the initial stage, the enzyme quickly cleaved the glucan with a pattern resembling an endo-hydrolase to produce a short-chain glucan (DP 45) as an intermediate. In the midterm stage, the resulting short-chain glucan was further cleaved into two fractions corresponding to DP 15-7 and DP 2-4 with great regularity. In the final stage, the lower oligomers corresponding to DP 3 and DP 4 were very slowly hydrolyzed into glucose and gentiobiose (Gen(2)). As a result, the hydrolytic cooperation of both an endo-type and saccharifying-type reaction by a single enzyme, which plays a bifunctional role, led to complete hydrolysis of the glucan. Thus, beta-(1 -> 6)-glucanase varies its mode of action depending on the chain length derived from the glucan. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2012.11.002

文献信息

• Cellulase-catalysed, stereoselective synthesis of oligosaccharides
  作者：Shin-Ichiro Shoda、Kei Obata、Olaf Karthaus、Shiro Kobayashi

  DOI：10.1039/c39930001402

  日期：——

  Oligosaccharides are synthesised enzymatically using β-lactosyl fluoride as glycosyl donor and a variety of mono-, di-and tri-saccharides as acceptors; the nature of the active site of the catalyst cellulase is discussed on the basis of these reactions.

  低聚糖通过酶法合成，以β-乳糖基氟化物为糖基供体，多种单糖、二糖和三糖作为受体；根据这些反应，探讨了催化剂纤维素酶活性中心的性质。
• Stannylene Activation in Glycoside Synthesis: Regioselective Glycosidations at the Primary Position of Galactopyranosides Unprotected in the 2-, 3-, 4-, and 6-Positions
  作者：Per J. Garegg、Jean-Luc Maloisel、Stefan Oscarson

  DOI：10.1055/s-1995-3918

  日期：1995.4

  Stannylene activation with dibutyltin oxide of methyl D-galactopyranosides and of methyl β-D-glucopyranoside, respectively, followed by glycosidation with 2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl bromide promoted by tetrabutylammonium iodide, or followed by glycosidation with ethyl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-glucopyranoside, or ethyl 2,3,4,6-tetra-O-acetyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside, or ethyl 2,3,4,6-tetra-O-benzoyl-1-thio-α-D-mannopyranoside, the latter four glycosyl donors being promoted by dimethyl(methylthio)sulfonium trifluoromethanesulfonate (DMTST), led to regioselective glycosidation at the 6-OH of the stannylene glycosyl acceptors. This selectivity was not observed in the absence of stannylene activation.

  分别用二丁基氧化锡活化甲基 D-吡喃半乳糖苷和甲基 δ-D-吡喃葡萄糖苷，然后用 2,3,4,6- O-四苄基-δ-D-吡喃葡萄糖基溴化物在四丁基碘化铵的促进下进行糖化，或用乙基 2,3,4,6- O-四苯甲酰基-1-硫代-δ-D-吡喃葡萄糖苷进行糖化、或乙基 2,3,4,6-O-四乙酰基-2-脱氧-2-酞酰亚胺基-1-硫代-δ-D-吡喃葡萄糖苷，或乙基 2,3,4,6-O-四苯甲酰基-1-硫代-δ-D-吡喃甘露糖苷、在三氟甲磺酸二甲基（甲硫基）锍（DMTST）的促进下，后四种糖基供体在链烯糖基受体的 6-OH 处发生了区域选择性糖苷化反应。在没有锡烯活化的情况下，则观察不到这种选择性。
• Karthaus, Olaf; Shoda, Shin-ichiro; Takano, Hiroshi, Journal of the Chemical Society. Perkin transactions I, 1994, # 13, p. 1851 - 1858
  作者：Karthaus, Olaf、Shoda, Shin-ichiro、Takano, Hiroshi、Obata, Kei、Kobayashi, Shiro

  DOI：——

  日期：——
• Forsgren, Marianne; Jansson, Per-Erik; Kenne, Lennart, Journal of the Chemical Society. Perkin transactions I, 1985, p. 2383 - 2388
  作者：Forsgren, Marianne、Jansson, Per-Erik、Kenne, Lennart

  DOI：——

  日期：——
• Transglycosylation reactions with a crude culture filtrate from Thermoascusaurantiacus
  作者：Jörg Ortner、Martin Albert、Katherine Terler、Walter Steiner、Karl Dax

  DOI：10.1016/s0008-6215(00)00061-6

  日期：2000.8

  Some characteristics of regioselectivity and acceptor tolerance in transglycosylation reactions, catalysed by a crude culture filtrate from Thermoascus aurantiacus, were examined by employing methanol and monosaccharides as accepters. When beta-D-mannopyranosyl fluoride was employed as the donor, the anomeric configuration of the newly formed bond was found to depend on the structure of the acceptor used. (C) 2000 Elsevier Science Ltd. All rights reserved.