1,5,6-tri-acetyl-2,3,4-tri-O-methyl glucitol | 24905-18-8

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 1,5,6-tri-acetyl-2,3,4-tri-O-methyl glucitol
• 英文别名: 1,5,6-tri-O-acetyl-2,3,4-tri-O-methylglucitol；1,5,6-tri-O-acetyl-2,3,4-tri-O-methyl-D-glucitol；1,5,6-tri-O-acetyl-2,3,4-tri-O-methyl-glucitol；[(2S,3R,4R,5R)-5,6-diacetyloxy-2,3,4-trimethoxyhexyl] acetate
• CAS: 24905-18-8
• 化学式: C₁₅H₂₆O₉
• 分子量: 350.366
• InChiKey: RUAAXNGDIMCTCD-GBJTYRQASA-N

物化性质

• 沸点：
  398.5±42.0 °C(Predicted)
• 密度：
  1.140±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.3
• 重原子数：
  24
• 可旋转键数：
  14
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  107
• 氢给体数：
  0
• 氢受体数：
  9

反应信息

• 作为产物：
  描述：

  槲皮素-3-龙胆二糖甙 生成 1,5,6-tri-acetyl-2,3,4-tri-O-methyl glucitol
  参考文献：
  名称：

  SU, JENG-DE;OSAWA, TOSHIHIKO;KAWAKISHI, SHUNRO;NAMIKI, MITSUO, AGR. AND BIOL. CHEM., 51,(1987) N 10, 2801-2803

  摘要：

  DOI：

文献信息

• A bitter monoterpene diglycoside from viburnum urceolatum
  作者：Tetsuo Iwagawa、Tsunao Hase

  DOI：10.1016/s0031-9422(00)80101-6

  日期：1983.1

  Abstract From the methanolic extract of the leaves of Viburnum urceolatum a new bitter monoterpene diglycoside, urceolide, has been isolated in addition to several known compounds. The structures were elucidated by spectroscopic and chemical methods.

  摘要 除了几种已知的化合物外，还从紫堇属植物叶的甲醇提取物中分离出了一种新的苦味单萜二糖苷，紫杉内酯。通过光谱和化学方法阐明了结构。
• Structure of the Klebsiella type 10 capsular polysaccharide
  作者：Arun K. Sarkar、Nirmolendu Roy

  DOI：10.1016/s0008-6215(00)90300-8

  日期：1986.9

  The capsular polysaccharide from Klebsiella Type 10 was found to contain D-galactose, D-glucose, D-mannose, and D-glucuronic acid in the ratios 3:1:1:1. Acid hydrolysis of the polysaccharide gave one aldobiouronic acid, one aldotriouronic acid, one aldotetraouronic acid, and two neutral disaccharides the structures of which were established. The native and carboxyl-reduced polysaccharide have been subjected

  发现来自10型克雷伯氏菌的荚膜多糖以3∶1∶1∶1∶1的比例含有D-半乳糖，D-葡萄糖，D-甘露糖和D-葡萄糖醛酸。多糖的酸水解得到一种醛糖二糖醛酸，一种醛糖三糖醛酸，一种醛糖四糖醛酸和两种中性二糖，其结构已确定。天然和羧基还原的多糖已经适当地进行了甲基化分析和史密斯降解。用碱基对甲基化多糖的降解建立了葡糖糖醛酸残基之前的糖单元的身份。糖残基的端基异构构型通过用三氧化铬氧化乙酰化的天然和羧基还原的多糖来确定。根据这些研究，
• Structure of the capsular polysaccharide of klebsiella serotype k53
  作者：Guy G.S. Dutton、Marcel Paulin

  DOI：10.1016/s0008-6215(00)85195-2

  日期：1980.12

  Klebsiella serotype K53 is one of three strains belonging to the chemotype whose capsular polysaccharides consist of D-glucuronic acid, D-galactose, D-mannose, and L-rhamnose residues, and the structure of its polysaccharide was found to be of the "5 + 1 type" shown, of the same structural pattern as the capsule from Klebsiella K52 (Formula, see text). Nimmich has analyzed the capsular polysaccharide

  克雷伯菌血清型K53是属于化学型的三个菌株之一，其荚膜多糖由D-葡萄糖醛酸，D-半乳糖，D-甘露糖和L-鼠李糖残基组成，其多糖结构被发现为“ 5”。显示了“ +1型”，其结构与Klebsiella K52的胶囊相同（配方，见正文）。Nimmich分析了克雷伯氏菌K53的荚膜多糖，并表明它属于化学型，还包含K40和K80。作为我们对这些多糖的持续研究的一部分，我们现在报告克雷伯菌K53荚膜抗原的结构。目前尚不清楚K40和K80的结构。
• Enzymic syntheses of doubly branched cyclomaltoheptaoses through the reverse action of Pseudomonas isoamylase
  作者：Jun-ichi Abe、Susumu Hizukuri、Kyoko Koizumi、Yoko Kubota、Toshiko Utamura

  DOI：10.1016/0008-6215(88)84060-6

  日期：1988.5

  Abstract Two and three new cyclomaltoheptaose (β-cyclodextrin, cG 7 ) derivatives, respectively, were identified among the products obtained by the action of Pseudomonas isoamylase on maltose and maltotriose, and cG 7 . They were 6 A ,6 D -di- O -α-maltosyl-cG 7 and 6- O -α-(6 2 - O -α-maltosyl)maltosyl-cG 7 , and 6 A ,6 D -di- O -α-maltotriosyl-cG 7 , 6- O -α-(6 3 - O -α-maltotriosyl)maltotriosyl-cG

  摘要在假单胞菌异淀粉酶对麦芽糖和麦芽三糖以及cG 7的作用下，分别鉴定出2个和3个新的环麦芽七糖（β-环糊精，cG 7）衍生物。它们是6 A，6 D -di-O-α-麦芽糖基-cG 7和6- O-α-（6 2-O-α-麦芽糖基）麦芽糖基-cG 7，以及6 A，6 D -di-O -α-麦芽三糖基-cG 7，6-O-α-（6 3 -O-α-麦芽三糖基）麦芽三糖基-cG 7和6-O-α-（6 2-O-α-麦芽三糖基）麦芽三糖基-cG 7 。另外，鉴定出6 1-和6 2-O-α-麦芽糖基麦芽糖是麦芽糖的相互缩合产物。麦芽糖是充当假单胞菌异淀粉酶作用的受体和供体的最小底物。
• Branched alpha-glucan, alpha-glucosyltransferase which forms the glucan, their preparation and uses
  申请人：Watanabe Hikaru

  公开号：US20100120710A1

  公开（公告）日：2010-05-13

  The present invention has objects to provide a glucan useful as water-soluble dietary fiber, its preparation and uses. The present invention solves the above objects by providing a branched α-glucan, which is constructed by glucose molecules and characterized by methylation analysis as follows: (1) Ratio of 2,3,6-trimethyl-1,4,5-triacetyl-glucitol to 2,3,4-trimethyl-1,5,6-triacetyl-glucitol is in the range of 1:0.6 to 1:4; (2) Total content of 2,3,6-trimethyl-1,4,5-triacetyl-glucitol and 2,3,4-trimethyl-1,5,6-triacetyl-glucitol is 60% or higher in the partially methylated glucitol acetates; (3) Content of 2,4,6-trimethyl-1,3,5-triacetyl-glucitol is 0.5% or higher but less than 10% in the partially methylated glucitol acetates; and (4) Content of 2,4-dimethyl-1,3,5,6-tetraacetyl-glucitol is 0.5% or higher in the partially methylated glucitol acetates; a novel α-glucosyltransferase which forms the branched α-glucan, processes for producing them, and their uses.

  本发明的目的是提供一种作为水溶性膳食纤维有用的葡聚糖、其制备和用途。本发明通过提供一种分支α-葡聚糖来解决上述目的，该葡聚糖由葡萄糖分子构成，其特征通过甲基化分析如下：（1）2,3,6-三甲基-1,4,5-三乙酰-葡萄糖醇与2,3,4-三甲基-1,5,6-三乙酰-葡萄糖醇的比率在1:0.6至1:4的范围内；（2）2,3,6-三甲基-1,4,5-三乙酰-葡萄糖醇和2,3,4-三甲基-1,5,6-三乙酰-葡萄糖醇的总含量在部分甲基化葡萄糖醇醋酸酯中达到60％或更高；（3）2,4,6-三甲基-1,3,5-三乙酰-葡萄糖醇的含量在部分甲基化葡萄糖醇醋酸酯中为0.5％或更高，但小于10％；（4）2,4-二甲基-1,3,5,6-四乙酰-葡萄糖醇的含量在部分甲基化葡萄糖醇醋酸酯中为0.5％或更高。本发明还提供了一种形成分支α-葡聚糖的新型α-葡萄糖基转移酶，用于生产它们的方法以及它们的用途。