6-O-(α-L-rhamnopyranosyl)-β-D-galactopyranose | 68567-49-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 6-O-(α-L-rhamnopyranosyl)-β-D-galactopyranose
• 英文别名: 6-O-α-L-rhamnopyranosyl-D-galactose；β-robinobiose；Robinose；(2R,3R,4S,5R,6R)-6-[[(2R,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxymethyl]oxane-2,3,4,5-tetrol
• CAS: 68567-49-7
• 化学式: C₁₂H₂₂O₁₀
• 分子量: 326.301
• InChiKey: OVVGHDNPYGTYIT-PEPLWKDOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -4.2
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  169
• 氢给体数：
  7
• 氢受体数：
  10

反应信息

• 作为产物：
  描述：

  1,2:3,4-di-O-isopropylidene-6-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-α-D-galactopyranose 在 三氟乙酸 、 sodium methylate 作用下， 以 水 、 甲醇 为溶剂， 反应 1.25h， 生成 6-O-(α-L-rhamnopyranosyl)-α-D-galactopyranose 、 6-O-(α-L-rhamnopyranosyl)-β-D-galactopyranose
  参考文献：
  名称：

  Synthesis of fluorescently labelled rhamnosides: probes for the evaluation of rhamnogalacturonan II biosynthetic enzymes

  摘要：

  Three fluorescently labelled saccharides 10-12, representing structures found in pectic glycan rhamnogalacturonan II (RG-II), were synthesised by chemical glycosylation of O-6 of diacetone-D-galactose followed by deprotection and reductive amination with amino-substituted fluorophore APTS. This convenient method installs a common aminogalactitol-based tether in order to preserve the integrity of the reducing end of specific carbohydrates of interest. APTS-labelled glycans prepared in this manner were purified by carbohydrate gel electrophoresis and subjected to capillary electrophoresis analysis, as a basis for the subsequent development of high sensitivity assays for RG-II-active enzymes. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2011.03.039

文献信息

• PROCESS FOR PRODUCING AGLYCON BY USING DIGLYCOSIDASE AND FLAVOR-IMPROVED FOOD CONTAINING THE AGLYCON AND CONVERTING AGENT TO BE USED IN THE PROCESS
  申请人：Amano Enzyme Inc.

  公开号：EP1270735A1

  公开（公告）日：2003-01-02

  A physiologically active substance of aglycon type, in particular, aglycon isoflavone, can be efficiently produced, without resort to any acid/alkali treatment or fermentation and substantially without changing the physical properties of a material, by treating the material with a sufficient amount of diglycosidase for a sufficient period of time at an appropriate temperature and pH so that a physiologically active substance of glycoside type contained in the material can be converted into the physiologically active substance of aglycon type. Moreover, by using diglycosidase and/or a specific enzyme preparation, the aglycon content in a protein or protein-containing food can be increased and the flavor thereof can be improved.

  在适当的温度和 pH 值下，用足量的双糖苷酶对材料进行足够时间的处理，使材料中含有的苷类生理活性物质转化为苷类生理活性物质，就可以有效地生产苷元类生理活性物质，特别是苷元异黄酮，而无需进行任何酸碱处理或发酵，也基本上不会改变材料的物理性质。此外，通过使用二糖苷酶和/或特定酶制剂，可以增加蛋白质或含蛋白质食品中的苷元含量，并改善其风味。
• Process for producing aglycon and flavor-improved food containing the aglycon by diglycosidase, and converting agent to be used in the process
  申请人：Amano Enzyme Inc.

  公开号：EP2123174A2

  公开（公告）日：2009-11-25

  A physiologically active substance of aglycon type, in particular, aglycon isoflavone, can be efficiently produced, without resort to any acid/alkali treatment or fermentation and substantially without changing the physical properties of a material, by treating the material with a sufficient amount of diglycosidase for a sufficient period of time at an appropriate temperature and pH so that a physiologically active substance of glycoside type contained in the material can be converted into the physiologically active substance of aglycon type. Moreover, by using diglycosidase and/or a specific enzyme preparation, the aglycon content in a protein or protein-containing food can be increased and the flavor thereof can be improved.

  在适当的温度和 pH 值下，用足量的双糖苷酶对材料进行足够时间的处理，使材料中含有的苷类生理活性物质转化为苷类生理活性物质，就可以有效地生产苷元类生理活性物质，特别是苷元异黄酮，而无需进行任何酸碱处理或发酵，也基本上不会改变材料的物理性质。此外，通过使用二糖苷酶和/或特定酶制剂，可以增加蛋白质或含蛋白质食品中的苷元含量，并改善其风味。
• Process for producing aglycon by using diglycosidase and flavor-improved food containing the aglycon and converting agent to be used in the process
  申请人：——

  公开号：US20030194469A1

  公开（公告）日：2003-10-16

  A physiologically active substance of aglycon type, in particular, aglycon isoflavone, can be efficiently produced, without resort to any acid/alkali treatment or fermentation and substantially without changing the physical properties of a material, by treating the material with a sufficient amount of diglycosidase for a sufficient period of time at an appropriate temperature and pH so that a physiologically active substance of glycoside type contained in the material can be converted into the physiologically active substance of aglycon type. Moreover, by using diglycosidase and/or a specific enzyme preparation, the aglycon content in a protein or protein-containing food can be increased and the flavor thereof can be improved.

  在适当的温度和 pH 值下，用足量的双糖苷酶对材料进行足够时间的处理，使材料中含有的苷类生理活性物质转化为苷类生理活性物质，就可以有效地生产苷元类生理活性物质，特别是苷元异黄酮，而无需进行任何酸碱处理或发酵，也基本上不会改变材料的物理性质。此外，通过使用二糖苷酶和/或特定酶制剂，可以增加蛋白质或含蛋白质食品中的苷元含量，并改善其风味。
• US7118895B2
  申请人：——

  公开号：US7118895B2

  公开（公告）日：2006-10-10