2-O-α-D-mannopyranosyl-D-mannose | 534-46-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 2-O-α-D-mannopyranosyl-D-mannose
• 英文别名: α(1->2)-mannobiose；α-(1,2)-mannobiose；1,2-α-mannobiose；α1-2 mannobiose；2α-mannobiose；Manα1->2Man；2-O-alpha-d-mannopyranosyl-d-mannose；(2S,3S,4R,5R)-3,4,5,6-tetrahydroxy-2-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhexanal
• CAS: 534-46-3；2140-29-6；7286-57-9；7368-73-2；28447-37-2；30633-98-8；33530-07-3；40871-49-6；42859-28-9；50728-37-5；50728-38-6；52611-35-5；53777-23-4；72244-38-3；78684-25-0；82443-88-7；82443-89-8；93601-68-4；96094-90-5；101144-30-3；132438-08-5
• 化学式: C₁₂H₂₂O₁₁
• 分子量: 342.3
• InChiKey: PZDOWFGHCNHPQD-JGLDSSSWSA-N

物化性质

• 沸点：
  783.7±60.0 °C(Predicted)
• 密度：
  1.68±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -5
• 重原子数：
  23
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.92
• 拓扑面积：
  197
• 氢给体数：
  8
• 氢受体数：
  11

反应信息

• 作为反应物：
  描述：

  2-O-α-D-mannopyranosyl-D-mannose 在 硼酸三钠 、 水 作用下， 生成 2-O-α-D-Mannopyranosyl-D-mannit
  参考文献：
  名称：

  A MANNAN PRODUCED BY SACCHAROMYCES ROUXII

  摘要：

  在D-阿拉伯醇发酵过程中，Saccharomyccs rouxii产生的主要粘多糖是甘露聚糖。醋酸解聚物以良好的产率提供了二糖和三糖，但没有产生更高的寡糖。通过甲基化和四乙酰化铅氧化，二糖被显示为2-O-α-D-甘露聚糖基-D-甘露糖，从而确定了多糖中存在1,2-α-连接。在酸水解中，甲基化的甘露聚糖主要产生2,3,4,6-四-O-甲基-D-甘露糖，3,4,6-三-O-甲基-D-甘露糖和3,4-二-O-甲基-D-甘露糖；发现的较少组分是2,4,6-三-O-甲基-D-甘露糖和3-O-甲基-D-甘露糖。甲基化和醋酸解聚物数据共同表明，平均结构单元由D-甘露聚糖单元的主链组成，其中含有交替的1,2-和1,6-连接，单个D-甘露聚糖单元通过1,2-连接作为侧链连接；或者，1,2-二糖单元通过1,2-连接作为侧链连接到1,6-连接的主链上。

  DOI：

  10.1139/v56-232
• 作为产物：
  描述：

  葡萄糖 、 乙酸酐 在 saccharomyces rouxii 、 硫酸 作用下， 生成 2-O-α-D-mannopyranosyl-D-mannose
  参考文献：
  名称：

  A MANNAN PRODUCED BY SACCHAROMYCES ROUXII

  摘要：

  在D-阿拉伯醇发酵过程中，Saccharomyccs rouxii产生的主要粘多糖是甘露聚糖。醋酸解聚物以良好的产率提供了二糖和三糖，但没有产生更高的寡糖。通过甲基化和四乙酰化铅氧化，二糖被显示为2-O-α-D-甘露聚糖基-D-甘露糖，从而确定了多糖中存在1,2-α-连接。在酸水解中，甲基化的甘露聚糖主要产生2,3,4,6-四-O-甲基-D-甘露糖，3,4,6-三-O-甲基-D-甘露糖和3,4-二-O-甲基-D-甘露糖；发现的较少组分是2,4,6-三-O-甲基-D-甘露糖和3-O-甲基-D-甘露糖。甲基化和醋酸解聚物数据共同表明，平均结构单元由D-甘露聚糖单元的主链组成，其中含有交替的1,2-和1,6-连接，单个D-甘露聚糖单元通过1,2-连接作为侧链连接；或者，1,2-二糖单元通过1,2-连接作为侧链连接到1,6-连接的主链上。

  DOI：

  10.1139/v56-232

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。
• Chemoselective Reagents for Covalent Capture and Display of Glycans in Microarrays
  作者：Emiliano Cló、Ola Blixt、Knud J. Jensen

  DOI：10.1002/ejoc.200901234

  日期：2010.1

  mannobiose, lactose, and N-acetyl-lactosamine and used for covalent printing of glycan microarrays. The stability of oximes were studied both in solution and on-chip. In solution, two of the linkers provided glycan-linker conjugates with a remarkable stability at pH 4 or higher, on-chip this relative stability was upheld. Two of the linkers, with different properties, are recommended for the glycobiology toolbox

  在过去的几十年里，糖生物学取得了非常显着的进步。然而，进一步的进展将在很大程度上取决于建立小型化、高通量分析聚糖-蛋白质相互作用的新方法。强大的固相化学工具和新的化学选择性试剂可能会发挥关键作用，用于具有生物学意义的表面固定聚糖展示。在这里，我们展示了四种新的双功能接头，它们允许对溶液中未受保护的聚糖进行高度化学选择性捕获，以形成用于直接构建聚糖微阵列（糖芯片）的聚糖-接头偶联物。双功能接头带有 O 连接的氨氧基部分，一些在一端带有 N 取代基，另一端带有氨基。此外，它们含有取代的苯环，用于紫外线可追溯性和改进的聚糖-接头偶联物的纯化。溶液中的 NMR 光谱研究证明，N-取代的氨基氧基接头提供了具有 β-吡喃葡萄糖苷构型的模型聚糖-接头缀合物，即生物识别所需的闭环形式。然后，由甘露二糖、乳糖和 N-乙酰-乳糖胺组装成一组聚糖-接头缀合物，用于聚糖微阵列的共价打印。在溶液和芯片上研究了肟的稳定性。在溶液中，两个接头提供了在
• 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：US10010029B2

  公开（公告）日：2018-07-03

  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.

  本发明公开了基于新型光发酵处理机制的促进植物生长的方法，该机制使用的糖吡喃糖苷包括糖吡喃糖基糖吡喃糖苷和芳基-a-D-糖吡喃糖基糖吡喃糖苷，更具体地说，使用一种或多种包含末端甘露三糖的化合物，可选择在由一种或多种光反射和/或折射部件（如硅基底物）增强的光存在下进行。此外，还公开了上述化合物的化学合成工艺，可普遍应用于植物。类似的硅酸盐微珠分布在支撑和种植植物根系的地面或基质上，在植物的下方和周围，光线被折射或反射到植物体上。
• 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, process and systems for the same
  申请人：Innovation Hammer, LLC

  公开号：US11147219B2

  公开（公告）日：2021-10-19

  A container for growing a plant. The container includes at least one container wall having a surface, the container wall having one or more light reflective and/or refractive members attached thereto. The one or more light reflective and/or refractive members may include one or more silicate microbeads that are buffered to neutrality. The container may contain a plant, and the one or more light reflective and/or refractive members may be positioned in the container to redistribute light toward the plant, and may be present in an amount effective to cause harmful light saturation of the plant. To safen the plant from such harmful light, the container also may contain one or more glycopyranosidic compounds, such as one or more alkyl-α-D-mannosides.

  一种用于种植植物的容器。容器包括至少一个具有表面的容器壁，容器壁上附有一个或多个光反射和/或折射部件。一个或多个光反射和/或折射部件可包括一个或多个缓冲至中性的硅酸盐微珠。容器中可装有植物，一个或多个光反射和/或折射部件可设置在容器中，以向植物重新分配光线，其存在量可有效导致植物的有害光饱和。为了使植物免受有害光的伤害，容器中还可含有一种或多种糖苷化合物，如一种或多种烷基-α-D-甘露糖苷。
• Sequential Removal of Monosaccharides from the Reducing End of Oligosaccharides. 2. Fundamental Studies of a Reaction between Hydrazino Compounds and Sugars Having a Glycosyl Moiety on a Carbon Atom Adjacent to a Carbonyl Group
  作者：Brad Bendiak、Mary E. Salyan、Mario Pantoja

  DOI：10.1021/jo00130a026

  日期：1995.12

  Hydrazine and certain hydrazino derivatives react with sugars having a glycosidic substituent, where the glycosyl moiety is located on a carbon atom adjacent to an aldehyde or keto group of the aglycon, resulting in cleavage of the glycosidic linkage. The reaction proceeds whether the glycon is of the alpha or beta configuration. The released glycosyl moiety, in the presence of excess hydrazino compound, reacts further to give a hydrazone derivative. Removal of the hydrazone group gives the reducing sugar derived from the glycon.