2-O-α-isomaltosyl-D-glucose | 55177-32-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-O-α-isomaltosyl-D-glucose
• 英文别名: Glc(a1-6)Glc(a1-2)a-Glc；(2S,3R,4S,5S,6R)-6-(hydroxymethyl)-3-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-[[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]oxan-2-yl]oxyoxane-2,4,5-triol
• CAS: 55177-32-7
• 化学式: C₁₈H₃₂O₁₆
• 分子量: 504.442
• InChiKey: XSGDQAKVXQNLMJ-PUFXIOBDSA-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

• 作为产物：
  描述：

  6³-O-α-D-glucosylkojitriose 在 盐酸 作用下， 以 水 为溶剂， 反应 1.5h， 生成 D-葡萄糖 、 α-isomaltose 、 2-O-α-isomaltosyl-D-glucose 、 kojitriose α-anomer 、 2-O-alpha-D-吡喃葡萄糖基-D-葡萄糖
  参考文献：
  名称：

  Acetolysis of Leuconostoc mesenteroides NRRL B-1299 dextran. Isolation and characterization of oligosaccharides containing secondary linkages from the borate-soluble fraction

  摘要：

  Fractionation of the deacetylated acetolyzate of the borate-soluble fraction of the dextran elaborated by L. mesenteroides NRRL B-1299 gave, after chromatography on charcoal-Celite, preparative paper-chromatography, and paper electrophoresis, 4 trisaccharide fractions and 4-tetrasaccharide fractions. The isolated oligosaccharides were characterized by their paper-chromatographic mobility, examination of partial acid-hydrolyzates of the oligosaccharides and their corresponding alditols, and methylation analysis. These oligosaccharides were kojitriose, isomaltotriose, a mixture of 2-O-.alpha.-isomaltosyl-D-glucose, 21-O-.alpha.-D-glucosylisomaltose and 2-O-.alpha.-nigerosyl-D-glucose, 6-O-.alpha.-kojibiosyl-D-glucose, isomaltotetraose, a mixture of 2-O-.alpha.-isomaltotriosyl-D-glucose and 21-O-.alpha.-D-glucosylisomaltotriose, 6-O-.alpha.-kojitriosyl-D-glucose and 63-O-.alpha.-D-glucosylkojitriose, respectively. Some of these oligosaccharides are newly isolated and characterized.

  DOI：

  10.1016/s0008-6215(00)85371-9

文献信息

• Acetolysis of Leuconostoc mesenteroides NRRL B-1299 dextran. Isolation and characterization of oligosaccharides containing secondary linkages from the borate-soluble fraction
  作者：Toshiyuki Watanabe、Michiko Chiba、Yutaka Matsuda、Fukuko Sakurai、Mikihiko Kobayashi、Kazuo Matsuda

  DOI：10.1016/s0008-6215(00)85371-9

  日期：1980.8

  Fractionation of the deacetylated acetolyzate of the borate-soluble fraction of the dextran elaborated by L. mesenteroides NRRL B-1299 gave, after chromatography on charcoal-Celite, preparative paper-chromatography, and paper electrophoresis, 4 trisaccharide fractions and 4-tetrasaccharide fractions. The isolated oligosaccharides were characterized by their paper-chromatographic mobility, examination of partial acid-hydrolyzates of the oligosaccharides and their corresponding alditols, and methylation analysis. These oligosaccharides were kojitriose, isomaltotriose, a mixture of 2-O-.alpha.-isomaltosyl-D-glucose, 21-O-.alpha.-D-glucosylisomaltose and 2-O-.alpha.-nigerosyl-D-glucose, 6-O-.alpha.-kojibiosyl-D-glucose, isomaltotetraose, a mixture of 2-O-.alpha.-isomaltotriosyl-D-glucose and 21-O-.alpha.-D-glucosylisomaltotriose, 6-O-.alpha.-kojitriosyl-D-glucose and 63-O-.alpha.-D-glucosylkojitriose, respectively. Some of these oligosaccharides are newly isolated and characterized.