O³-{O⁴-[O³-(3,6-Anhydro-α-L-galactopyranosyl)-β-D-galactopyranosyl]-3,6-anhydro-α-L-galactopyranosyl}-D-galactose | 72826-82-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: O³-{O⁴-[O³-(3,6-Anhydro-α-L-galactopyranosyl)-β-D-galactopyranosyl]-3,6-anhydro-α-L-galactopyranosyl}-D-galactose
• 英文别名: (2R,3S,4S,5R)-3-[[(1S,3S,4S,5S)-8-[(2S,3R,4S,5S,6R)-4-[[(1S,3S,4S,5R)-4,8-dihydroxy-2,6-dioxabicyclo[3.2.1]octan-3-yl]oxy]-3,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4-hydroxy-2,6-dioxabicyclo[3.2.1]octan-3-yl]oxy]-2,4,5,6-tetrahydroxyhexanal
• CAS: 72826-82-5
• 化学式: C₂₄H₃₈O₁₉
• 分子量: 630.554
• InChiKey: ZGTFLOAQMKPQMR-VEZYUZIMSA-N

物化性质

• 沸点：
  1043.5±65.0 °C(Predicted)
• 密度：
  1.76±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -7.81
• 重原子数：
  43.0
• 可旋转键数：
  12.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.96
• 拓扑面积：
  293.21
• 氢给体数：
  10.0
• 氢受体数：
  19.0

反应信息

• 作为反应物：
  描述：

  O³-{O⁴-[O³-(3,6-Anhydro-α-L-galactopyranosyl)-β-D-galactopyranosyl]-3,6-anhydro-α-L-galactopyranosyl}-D-galactose 在 草酸 作用下， 生成 N-(3-环己基丙酰)-L-酪氨酸 、 alkaline earth salt of/the/ methylsulfuric acid
  参考文献：
  名称：

  Araki; Arai, Nippon Kagaku Kaishi/Journal of the Chemical Society of Japan, 1957, vol. 30, p. 287,290

  摘要：

  DOI：

文献信息

• Studies on the Chemical Constitution of Agar-agar. XX. Isolation of a Tetrasaccharide by Enzymatic Hydrolysis of Agar-agar
  作者：Choji Araki、Kiyoshi Arai

  DOI：10.1246/bcsj.30.287

  日期：1957.3

  1. A tetrasaccharide, forming a crystalline tetrahydrate, has been isolated from the products of enzymatic hydrolysis of agar. Its fully acetylated and methylated derivatives have also been obtained as crystals.2. Identification of both monosaccharide and disacharide constituents has led to the assignment of the structure, O-3,6-anhydro-α-l-galactopyranosly-(1→3)-O-β-d-galactopyranosyl-(1→4)-O-3,6-anhydro-α-l-galactopyranosyl-(1→3)-d-garactose, to the tetrasaccharide isolated. The structure has been supported also by methylation data.3. The tetrasaccharide has been termed neoagarotetraose, based on the general nomenclature suggested for oligosaccharides derived from agarose and a similar polysaccharide.4. A probable course has been assumed for the enzymatic degradation of agarose.

  1.从琼脂酶水解产物中分离出四糖，形成结晶四水合物。其全乙酰化和甲基化衍生物也已得到晶体。 2．单糖和二糖成分的鉴定导致了结构的分配，O-3,6-脱水-α-l-吡喃半乳糖基-(1→3)-O-β-d-吡喃半乳糖基-(1→4)- O-3,6-脱水-α-l-吡喃半乳糖基-(1→3)-d-半乳糖，至分离的四糖。该结构也得到了甲基化数据的支持。3．根据对琼脂糖衍生的寡糖和类似多糖提出的通用命名法，四糖被称为新琼脂四糖。4．琼脂糖酶促降解的可能过程已被假定。