(2S,3R,4S,5S,6R)-2-[(2R,3R,4S,5S,6R)-2-((2S,3S,4S,5R)-3,4-Dihydroxy-2,5-bis-hydroxymethyl-tetrahydro-furan-2-yloxy)-4,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-3-yloxy]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (2S,3R,4S,5S,6R)-2-[(2R,3R,4S,5S,6R)-2-((2S,3S,4S,5R)-3,4-Dihydroxy-2,5-bis-hydroxymethyl-tetrahydro-furan-2-yloxy)-4,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-3-yloxy]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol
• 英文别名: Glc(b1-2)Glc(a1-2b)Fruf；(2S,3R,4S,5S,6R)-2-[(2R,3R,4S,5S,6R)-2-[(2S,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
• 化学式: C₁₈H₃₂O₁₆
• 分子量: 504.442
• InChiKey: LNRUEZIDUKQGRH-HRUWSWHBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -5.3
• 重原子数：
  34
• 可旋转键数：
  8
• 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：

  alkaline earth salt of/the/ methylsulfuric acid 在 sodium tetrahydroborate 作用下， 以 水 为溶剂， 生成 O-α-D-glucopyranosyl-(1â 4)-β-D-glucopyranosyl α-D-glucopyranoside 、 α-glucosyl-sucrose 、 (2S,3R,4S,5S,6R)-2-[(2R,3R,4S,5S,6R)-2-((2S,3S,4S,5R)-3,4-Dihydroxy-2,5-bis-hydroxymethyl-tetrahydro-furan-2-yloxy)-4,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-3-yloxy]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol 、 O-α-D-glucopyranosyl-(1â 4)-α-D-glucopyranosyl β-D-glucopyranoside
  参考文献：
  名称：

  Structural determination of some new oligosaccharides and analysis of the branching pattern of isomaltooligosaccharides from beer

  摘要：

  Separation of the low molecular weight fraction of oligosaccharides from beer and subsequent NMR analysis led to the identification of several new derivatives of trehalose, sucrose, maltooligosaccharides glucosylated at O-2 of reducing end Glc, and linear Glc oligomers with alpha-(1-->3) and alpha-(1-->4)-linkages. Reducing oligosaccharides were labeled with 7-amino-4-methylcoumarin by reductive amination, separated according to their molecular weight and the branching pattern was studied using enzymatic (pullulanase) degradation in combination with MALDI-TOF mass spectrometry and HPLC analysis. It was found that up to DP 10 isomaltooligosaccharides mostly consisted of a linear reducing alpha-(1-->4)-linked Glc chain substituted by single maltose or maltotriose residue at O-6 of any residue except the reducing one. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(98)00119-0