2,3,6-tri-O-methyl-D-galactopyranose | 4599-58-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,3,6-tri-O-methyl-D-galactopyranose
• 英文别名: 2,4,6-tri-O-methyl-D-galactose；O²,O³,O⁶-trimethyl-D-galactose；2,3,6-Tri-O-methyl-D-galactose；2,3,6-Tri-O-methyl-D-galaktose；2,3,6-Tri-O-methyl-galaktose；(3R,4S,5S,6R)-3,4-dimethoxy-6-(methoxymethyl)oxane-2,5-diol
• CAS: 4599-58-0
• 化学式: C₉H₁₈O₆
• 分子量: 222.238
• InChiKey: LXJBARMBDDODTG-MBOVONDJSA-N

物化性质

• 沸点：
  357.2±42.0 °C(Predicted)
• 密度：
  1.22±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.26
• 重原子数：
  15.0
• 可旋转键数：
  4.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  77.38
• 氢给体数：
  2.0
• 氢受体数：
  6.0

反应信息

• 作为产物：
  描述：

  在 硫酸 作用下， 以 甲醇 、 水 为溶剂， 反应 6.0h， 生成 2,3,4,6-tetra-O-methyl-D-glucopyranose 、 O³,O⁴,O⁶-trimethyl-D-glucose 、 2,3,6-tri-O-methyl-D-galactopyranose 、 新提果皂甙元
  参考文献：
  名称：

  Tomatoside a from the seeds ofLycopersicum esculentum

  摘要：

  DOI：

  10.1007/bf00568374

文献信息

• Steroid saponins and sapogenins ofAllium. XVII. The structure of karatavioside C
  作者：Yu. S. Vollerner、M. B. Gorovits、T. T. Gorovits、N. K. Abubakirov

  DOI：10.1007/bf00567288

  日期：——

  A new furostanol glycoside — karatavioside C (I) has been isolated from a methanolic extract of the inflorescences ofAllium karataviense Rgl. (family Liliaceae). By the complete acid hydrolysis, enzymatic hydrolysis, methylation, and reduction of compound (I), and also by the reduction of yuccagenin (II), the structure of the glycoside (I) has been established as 25(R)-furost-5-ene-2α, 3β, 22α, 26-tetrao]

  一种新的呋喃甾醇糖苷 — karatavioside C (I) 已从 Allium karataviense Rgl 的花序的甲醇提取物中分离出来。（百合科）。通过化合物(I)的完全酸水解、酶水解、甲基化和还原，以及通过丝兰素(II)的还原，糖苷(I)的结构已确定为25(R)-furost-5 -ene-2α, 3β, 22α, 26-tetrao] 26-0-β-D-吡喃葡萄糖苷 3-0-[0-β-D-吡喃葡萄糖苷-(1→2)][0-β-D-吡喃木糖苷-(1→3)]-0-β-D-吡喃葡萄糖基-(1→4)-β-D-吡喃半乳糖苷。
• Steroidal Saponin from Polygonatum verticillatum
  作者：L. N. Gvazava、A. V. Skhirtladze

  DOI：10.1007/s10600-016-1859-1

  日期：2016.11

  New steroidal glycoside 1 was isolated by fractionation of total extracted compounds from rhizomes of Polygonatum verticillatum (Convallariaceae). Chemical transformations, physical constants, and spectral data characterized its structure as (25S)-spirost-5-en-3β-ol 3-O-β-D-glucopyranosyl-(1→3)-[β-Dfucopyranosyl-(1→2)]-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside.

  新型甾体苷1是从轮叶黄精（黄精科）的根茎中提取的总化合物的分级分离中获得的。通过化学转化、物理常数和光谱数据，其结构被鉴定为（25S）-螺甾-5-烯-3β-醇 3-O-β-D-吡喃葡萄糖基-(1→3)-[β-D-吡喃岩藻糖基-(1→2)]-β-D-吡喃葡萄糖基-(1→4)-β-D-吡喃半乳糖苷。
• A New Antiviral Flavone Glycoside from Vernonia cinerea Less.
  作者：R.N. Yadava、Mamta Raj

  DOI：10.14233/ajchem.2013.13533

  日期：——

  A new flavone glycoside (A) m.p. 258-260 ºC, m.f. C33H40O19, [M]+ 740 (FABMS), has been isolated from roots of Vernonia cinerea Less. It was characterized as 5,7,4-trihydroxy 3-methoxy flavone-4-O-a-L-rhamnopyranosyl-(1®4)-O-a-L-arabino-pyranosyl-(1®3)-O-b-D-galactopyranoside by various chemical degradations and spectral analysis which showed antiviral activity alongwith two known compounds luteolin (B) and taxifolin (C).

  一种新的黄酮苷(A) m.p. 258-260 ℃，m.f. C33H40O19，[M]+ 740 (FABMS)，已从斑鸠菊根中分离出来。通过各种化学降解和光谱分析，将其定性为5,7,4-三羟基3-甲氧基黄酮-4-O-a-L-吡喃鼠李糖基-(1®4)-O-a-L-阿拉伯-吡喃糖基-(1®3)-O-b-D-吡喃半乳糖苷它与两种已知的化合物木犀草素 (B) 和花旗松素 (C) 一起显示出抗病毒活性。
• Formation of Homooligosaccharides Using Base-Promoted Glycosylation of Unprotected Glycosyl Fluorides
  作者：Andreas Steinmann、Julian Thimm、Martin Matwiejuk、Joachim Thiem

  DOI：10.1021/ma100191d

  日期：2010.4.27

  Homooligomeric saccharides are of general interest with potential applications in chemical, pharmaceutical, and food industry as well as for materials with novel properties. This contribution describes a methodology of a base-promoted "single step self-oligomerization" of glycosyl fluorides as donors leading to oligomers with up to similar to 25 saccharide units. The influences of base and reaction time were examined. Linkage analysis of the corresponding alditol acetates by GC/MS allowed for calculation of average structural elements of oligomers.
• Steroid saponins and sapogenins ofAllium. XX. Structure of karatavisoides E and F
  作者：Yu. S. Vollerner、N. D. Abdullaev、M. B. Gorovits、N. K. Abubakirov

  DOI：10.1007/bf00574793

  日期：——