α-D-Galactosyl-(1->6)-α-D-galactosyl-(1->6)-α-D-glucose | 284665-14-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: α-D-Galactosyl-(1->6)-α-D-galactosyl-(1->6)-α-D-glucose
• 英文别名: α-D-Galp-(1-6)-α-D-Galp-(1-6)-α-D-Glcp；manninotriose；α-D-Gal-(1→6)-α-D-Gal-(1→6)-α-D-Glu；galactosyl-melibiose；Gal(a1-6)Gal(a1-6)a-Glc；(2S,3R,4S,5S,6R)-6-[[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-[[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]oxan-2-yl]oxymethyl]oxane-2,3,4,5-tetrol
• CAS: 284665-14-1
• 化学式: C₁₈H₃₂O₁₆
• 分子量: 504.442
• InChiKey: FBJQEBRMDXPWNX-DMNXDXFTSA-N

物化性质

• 沸点：
  856.6±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：

  stachyose 在 β-fructosidase 作用下， 以 水 为溶剂， 生成 α-D-Galactosyl-(1->6)-α-D-galactosyl-(1->6)-α-D-glucose
  参考文献：
  名称：

  Ciceritol，一种松醇二半乳糖苷形成鹰嘴豆、扁豆和白羽扇豆的种子

  摘要：

  摘要 通过制备型PC，从鹰嘴豆(Cicer arietinum) 子叶的水乙醇提取物中分离出一种新的三糖。这种糖的三甲基甲硅烷基衍生物的 GC 保留时间与之前错误报告的鹰嘴豆和扁豆种子中甘露三糖的保留时间相同。HPLC 分析允许新三糖和甘露三糖之间的良好分离，表明后者在鹰嘴豆和其他研究中的豆类种子中不存在。新糖的组成和结构通过酶水解测定、完全酸水解后获得的糖醇乙酸酯衍生物的 GC 分析、稀酸水解副产物的 GC 分析和部分甲基化或三氘代甲基化的糖醇乙酸酯的 GC/MS 分析来确定。新的三糖是松醇的 α- d -二半乳糖苷，是 O -α- d -吡喃半乳糖基-(1-6)- O -α- d -吡喃半乳糖基-(1-2)-1 d -4- O -甲基- chiro - 肌醇。由于主要源自鹰嘴豆，因此建议将其命名为 ciceritol。通过 HPLC 和 GC 分析了七种具有商业重要性的豆类种子的环醇、环醇衍生的寡糖和蔗糖

  DOI：

  10.1016/s0031-9422(00)80263-0

文献信息

• Identification of Oligosaccharides Formed during Stachyose Hydrolysis by Pectinex Ultra SP-L
  作者：Antonia Montilla、Nieves Corzo、Agustin Olano、María Luisa Jimeno

  DOI：10.1021/jf900309x

  日期：2009.6.10

  The commercial enzyme preparation Pectinex Ultra SP-L containing fructosyltransferase activity was used to hydrolyze stachyose. During this reaction, besides the formation of mono-, di-, and trisaccharides (DP3), the presence of one pentasaccharide (DP5) and a new oligosaccharide (DP6) has been detected by gas chromatography. DP5 and DP6 oligosaccharides were isolated and fully characterized for the first time by an extensive nuclear magnetic resonance (NMR) study. Complete structure elucidation and full proton and carbon assignments were carried out using 1D (H-1, C-13) and 2D (gCOSY, multiplicity-edited gHSQC, gHSQC-TOCSY, and gHMBC) NMR experiments. The two oligosaccharides were shown to be stachyose-based structures; the pentasaccharide has a fructose unit linked to the C-1 of the fructose end of stachyose, and the hexasaccharide has a fructose unit linked to the C-1 of the fructose end of the pentasaccharide. The fructosyltransferase activity present in Pectinex Ultra SP-L allows new uses of this commercial enzyme preparation in the synthesis of oligosaccharides derived from alpha-galactosides.
• Transgalactosylation products from melibose by the .ALPHA.-galactosidase of Absidia corymbifera.
  作者：Shiro SUGAWARA、Ryoji NAKAGAWA、Tadashi URASHIMA、Tetuya SATO、Takayuki MURATUBAKI、Koji SAYAMA

  DOI：10.1271/bbb1961.54.211

  日期：——
• Ciceritol, a pinitol digalactoside form seeds of chickpea, lentil and white lupin
  作者：Bernard Quemener、Jean-Marc Brillouet

  DOI：10.1016/s0031-9422(00)80263-0

  日期：1983.1

  wrongly reported in seeds of chickpea and lentil. HPLC analysis allowed a good separation between the new trisaccharide and manninotriose showing that the latter was absent in chickpea and in the other legume seeds under study. The composition and structure of the new sugar were determined by enzymatic hydrolysis assays, GC analysis of alditol acetate derivatives obtained after complete acid hydrolysis, GC

  摘要 通过制备型PC，从鹰嘴豆(Cicer arietinum) 子叶的水乙醇提取物中分离出一种新的三糖。这种糖的三甲基甲硅烷基衍生物的 GC 保留时间与之前错误报告的鹰嘴豆和扁豆种子中甘露三糖的保留时间相同。HPLC 分析允许新三糖和甘露三糖之间的良好分离，表明后者在鹰嘴豆和其他研究中的豆类种子中不存在。新糖的组成和结构通过酶水解测定、完全酸水解后获得的糖醇乙酸酯衍生物的 GC 分析、稀酸水解副产物的 GC 分析和部分甲基化或三氘代甲基化的糖醇乙酸酯的 GC/MS 分析来确定。新的三糖是松醇的 α- d -二半乳糖苷，是 O -α- d -吡喃半乳糖基-(1-6)- O -α- d -吡喃半乳糖基-(1-2)-1 d -4- O -甲基- chiro - 肌醇。由于主要源自鹰嘴豆，因此建议将其命名为 ciceritol。通过 HPLC 和 GC 分析了七种具有商业重要性的豆类种子的环醇、环醇衍生的寡糖和蔗糖