2-O-methyl-β-D-glucose | 14251-16-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-O-methyl-β-D-glucose
• 英文别名: 2-O-Methyl-β-D-glucopyranose；(2R,3R,4S,5S,6R)-6-(hydroxymethyl)-3-methoxyoxane-2,4,5-triol
• CAS: 14251-16-2
• 化学式: C₇H₁₄O₆
• 分子量: 194.185
• InChiKey: UMPNFVHHMOSNAC-XUUWZHRGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -2.1
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  99.4
• 氢给体数：
  4
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2-O-methyl-β-D-glucose 生成 2-O-methyl-α-D-glucose
  参考文献：
  名称：

  REUBEN, JACQUES, CARBOHYDR. RES., 184,(1988) C. 244-246

  摘要：

  DOI：
• 作为产物：
  描述：

  2-O-methyl-α-D-glucose 生成 2-O-methyl-β-D-glucose
  参考文献：
  名称：

  REUBEN, JACQUES, CARBOHYDR. RES., 184,(1988) C. 244-246

  摘要：

  DOI：

文献信息

• Methods And Systems For Growing Plants Using Silicate-Based Substrates, Cultivation Of Enhanced Photosynthetic Productivity And Photosafening By Utilization Of Exogenous Glycopyranosides For Endogenous Glycopyranosyl-Protein Derivatives, And Formulations, Processes And Systems For The Same
  申请人：Innovation Hammer, LLC

  公开号：US20140331555A1

  公开（公告）日：2014-11-13

  Methods for promoting plant growth based on novel photosafening treatment regimes with glycopyranosides including glycopyranosylglycopyranosides, and aryl-a-D-glycopyranosides, and more specifically, with one or more compounds comprising terminal mannosyl-triose, optionally in the presence of light enhanced by one or more light reflecting and/or refracting members such as silicon-based substrates. Furthermore, chemical synthesis processes for the above compounds are disclosed for general application to plants. Silicate microbeads of the like are distributed over the ground or substrate in which roots of a plant are supported and planted, beneath and around a plant in a manner that light is refracted or reflected toward the phylloplane.

  基于新型光保护处理方案促进植物生长的方法，包括甘露聚糖苷类化合物，如甘露聚糖苷和芳基-a-D-甘露聚糖苷，更具体地，使用含有端基甘露三糖的一个或多个化合物，可选地在存在硅基基底等一个或多个反射和/或折射光的成员的情况下增强光线。此外，还公开了上述化合物的化学合成过程，以供普遍应用于植物。类似的硅酸盐微珠分布在植物的根部支撑和种植的地面或基质上，在植物的下方和周围，使光线以折射或反射的方式朝向叶面。
• Dehydrating agent and method for dehydrating moist article using the agent and dehydrated article obtained by the method
  申请人：Kubota Michio

  公开号：US20060008791A1

  公开（公告）日：2006-01-12

  The present invention has the object to dehydrate hydrous matters without denaturing or deteriorating them by using a dehydrating agent comprising an anhydrous cyclotetrasaccharide, and provides a dehydrating agent comprising the cyclotetrasaccharide; a method for dehydrating hydrous matters through a step of incorporating, contacting or coexisting the cyclotetrasaccharide into, with, or in the hydrous matters; and dehydrated products obtainable thereby.

  本发明的目的是通过使用包含无水环四糖的脱水剂，将含水物质脱水而不使其变性或恶化，并提供包含环四糖的脱水剂；通过将环四糖并入、接触或共存于含水物质中的步骤来脱水含水物质的方法；以及由此获得的脱水产品。
• Alpha-Isomaltosylglucosaccharide synthase, process for producing the same and use thereof
  申请人：——

  公开号：US20030194762A1

  公开（公告）日：2003-10-16

  The object of the present invention is to provide an &agr;-isomaltosylglucosaccharide-forming enzyme, process of the same, cyclotetrasaccharide, and saccharide composition comprising the saccharide which are obtainable by using the enzyme; and is solved by establishing an &agr;-isomaltosylglucosaccharide-forming enzyme which forms a saccharide, having a glucose polymerization degree of at least three and having both the &agr;-1,6 glucosidic linkage as a linkage at the non-reducing end and the &agr;-1,4 glucosidic linkage other than the linkage at the non-reducing end, by catalyzing the &agr;-glucosyl-transfer from a saccharide having a glucose polymerization degree of at least two and having the &agr;-1,4 glucosidic linkage as a linkage at the non-reducing end without substantially increasing the reducing power; &agr;-isomaltosyl-transferring method using the enzyme; method for forming &agr;-isomaltosylglucosaccharide; process for producing a cyclotetrasaccharide having the structure of cyclo{→6)-&agr;-D-glucopyranosyl-(1→3)-&agr;-D-glucopyranosyl-(1→6)-&agr;-D-glucopyranosyl-(1→3)-&agr;-D-glucopyranosyl-(1→} using both the &agr;-isomaltosylglucosaccharide-forming enzyme and the &agr;-isomaltosyl-transferring enzyme; and the uses of the saccharides obtainable therewith.

  本发明的目的是提供一种α-异麦芽糊精葡萄糖醛酸形成酶、其制备方法、环四糖和含有使用该酶可获得的糖分的糖组成物；并通过建立一种α-异麦芽糊精葡萄糖醛酸形成酶来解决该问题，该酶可形成一种葡萄糖聚合度至少为三且具有α-1,6葡萄糖苷键作为非还原端连接和α-1,4葡萄糖苷键作为非还原端连接以外的连接的糖分，通过催化具有至少二个葡萄糖聚合度且具有α-1,4葡萄糖苷键作为非还原端连接的糖分的α-葡萄糖基转移而形成，而不实质性地增加还原能力；使用该酶的α-异麦芽糊精转移方法；形成α-异麦芽糊精葡萄糖醛酸的方法；使用α-异麦芽糊精葡萄糖醛酸形成酶和α-异麦芽糊精转移酶同时制备具有环四糖结构的环四糖的方法；以及使用可获得的糖分的用途。
• Process for producing isomaltose and use thereof
  申请人：——

  公开号：US20040253690A1

  公开（公告）日：2004-12-16

  The object of the present invention is to provide a novel process for producing isomaltose and uses thereof and is solved by providing a process for producing isomaltose characterized in that it comprises the steps of allowing &agr;-isomaltosylglucosaccharide-forming enzyme, in the presence or the absence of &agr;-isomaltosyl-transferring enzyme, to act on saccharides, which have a glucose polymerization degree of at least two and &agr;-1,4 glucosidic linkage as a linkage at the non-reducing end, to form &agr;-isomaltosylglucosaccharides, which have a glucose polymerization degree of at least three, &agr;-1,6 glucosidic linkage as a linkage at the non-reducing end, and &agr;-1,4 glucosidic linkage as a linkage other than the non-reducing end, and/or to form cyclo{→6)-&agr;-D-glucopyranosyl-(1→3)-&agr;-D-glucopyranosyl-(1→6)-&agr;-D-glucopyranosyl-(1→3)-&agr;-D-glucopyranosyl-(1→}; allowing isomaltose-releasing enzyme to act on the formed saccharides to release isomaltose; and collecting the released isomaltose; and uses thereof.

  本发明的目的是提供一种新的制备异麦芽糖及其用途的方法，并通过提供一种制备异麦芽糖的方法来解决该问题，其特征在于包括以下步骤：在存在或不存在α-异麦芽糖转移酶的情况下，使α-异麦芽糖基葡萄糖糖苷形成酶作用于具有至少两个葡萄糖聚合度和α-1,4葡萄糖苷键作为非还原末端的糖，以形成具有至少三个葡萄糖聚合度、α-1,6葡萄糖苷键作为非还原末端以及α-1,4葡萄糖苷键作为非还原末端以外其他位置的α-异麦芽糖基葡萄糖糖苷，和/或形成环→6）-α-D-葡萄糖吡喃糖苷-(1→3)-α-D-葡萄糖吡喃糖苷-(1→6)-α-D-葡萄糖吡喃糖苷-(1→3)-α-D-葡萄糖吡喃糖苷-(1→）；使异麦芽糖释放酶作用于形成的糖，以释放异麦芽糖；收集释放的异麦芽糖；以及其用途。
• Method of producing ginsenoside 20 (R)-Rh2 and composition of matter thereof
  申请人：Young Jeffrey

  公开号：US20050287230A1

  公开（公告）日：2005-12-29

  The present invention is a method of producing ginsenoside comprising the steps of: (a) producing a predetermined quantity of ginseng dialcohol from an extraction process of ginseng dialcohol; (b) reacting the ginseng dialcohol with a predetermined quantity of acetobromo-α-D-glucose under a predetermined condition; and (c) obtaining a predetermined quantity of ginsenoside Rh 2 . The present invention also provides a composition for enhancing the immune system of a living object comprising a quantity of ginsenoside, a quantity of ursolic acid and a quantity of shikonin. The composition may also comprise a quantity of panaxans, astragalan, and/or lentinan. The ginsenoside 20(R)-Rh 2 , ursolic acid, shikonin, panaxans, astragalan and lentinan have an effective range between 0.001 mg/kg and 0.1 mg/kg, 0.5 mg/kg and 10 mg/kg, 0.5 mg/kg and 10 mg/kg, 0.1 mg/kg and 1 mg/kg, 0.1 mg/kg and 1 mg/kg, and 0.1 mg/kg and 1 mg/kg respectively.

  本发明涉及一种生产人参皂苷的方法，包括以下步骤：（a）从人参二醇的提取过程中生产出预定量的人参二醇；（b）在预定条件下将人参二醇与预定量的乙酰溴-α-D-葡萄糖反应；（c）获得预定量的人参皂苷Rh2。本发明还提供了一种增强生物体免疫系统的组合物，包括一定量的人参皂苷、一定量的熊果酸和一定量的赤芍。该组合物还可以包括一定量的人参皂苷、黄芪苷和/或香菇多糖。人参皂苷20（R）-Rh2、熊果酸、赤芍、人参皂苷、黄芪苷和香菇多糖在0.001 mg/kg至0.1 mg/kg、0.5 mg/kg至10 mg/kg、0.5 mg/kg至10 mg/kg、0.1 mg/kg至1 mg/kg、0.1 mg/kg至1 mg/kg和0.1 mg/kg至1 mg/kg之间具有有效范围。