3-O-(2,3,4-tri-O-benzyl-β-D-galactopyranosyl)-1,2-O-isopropylidene-sn-glycerol | 57731-81-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-O-(2,3,4-tri-O-benzyl-β-D-galactopyranosyl)-1,2-O-isopropylidene-sn-glycerol
• 英文别名: [(2R,3S,4S,5R,6R)-6-[[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]methoxy]-3,4,5-tris(phenylmethoxy)oxan-2-yl]methanol
• CAS: 57731-81-4
• 化学式: C₃₃H₄₀O₈
• 分子量: 564.676
• InChiKey: YFMCLWQSHOSELM-BUOONKCFSA-N

物化性质

• 沸点：
  673.8±55.0 °C(Predicted)
• 密度：
  1.23±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  41
• 可旋转键数：
  13
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  84.8
• 氢给体数：
  1
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  3-O-(2,3,4-tri-O-benzyl-β-D-galactopyranosyl)-1,2-O-isopropylidene-sn-glycerol 在 钯 氢气 作用下， 生成 2,3-二羟基丙基吡喃己糖苷
  参考文献：
  名称：

  通过1-0-烷基化合成α-和β-吡喃葡萄糖苷

  摘要：

  部分保护的吡喃葡萄糖1和半乳糖吡喃糖13的1-0烷基化导致β-糖苷和β-二糖4a-d和14的便捷，短期合成。在0-6带有较大保护基的葡糖醛糖2仅产生α。 -异头物（异麦芽糖苷衍生物）5。

  DOI：

  10.1016/0040-4039(80)80236-x
• 作为产物：
  描述：

  2',3',4',6'-tetra-O-acetyl-1'-O-β-D-galactopyranosyl-(2S,3)-isopropylidene-glycerol 在 咪唑 、 四丁基氟化铵 、 sodium methylate 、 四丁基碘化铵 、 sodium hydride 作用下， 以 四氢呋喃 、 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 1.0h， 生成 3-O-(2,3,4-tri-O-benzyl-β-D-galactopyranosyl)-1,2-O-isopropylidene-sn-glycerol
  参考文献：
  名称：

  Syntheses of an α-d-Gal-(1→6)-β-d-Gal diglyceride, as lipase substrate

  摘要：

  Two different routes were explored to afford 3-O-(6-0-alpha-D-galactopyranosyl-beta-D-galactopyranosyl)-1,2-di-O-dodecanoyl-sn-glycerol. In the first one, the key step was the glycosylation of the 3-O-(2,3,4-tri-O-benzyl-beta-D-galactopyranosyl)- 1, 2-O-isopropylidene-sn-glycerol acceptor with 2-pyridyl 2,3,4,6-tetra-O-benzyl-1-thio-beta-D-galactopyranoside as the donor. In the second one, the key step was the coupling of 2,3,4-tri-O-acetyl-6-O-(2,3,4,6-tetra-O-benzyl-alpha-D-galactopyranosyl)-D-galactopyranosyl trichloroacetimidate donor with 1,2-O-isopropylidene-sn-glycerol. Even though the number of steps was the same in both pathways, the first one afforded a better overall yield (12.4%) than the second one (6.5%). This eight-step synthesis allowed the preparation of the expected glycolipid, which was used as substrate for recombinant GPLRP2 galactolipase using the monomolecular film technique. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2006.01.021

文献信息

• Syntheses of an α-d-Gal-(1→6)-β-d-Gal diglyceride, as lipase substrate
  作者：Dominique Lafont、Frédéric Carrière、Francine Ferrato、Paul Boullanger

  DOI：10.1016/j.carres.2006.01.021

  日期：2006.5

  Two different routes were explored to afford 3-O-(6-0-alpha-D-galactopyranosyl-beta-D-galactopyranosyl)-1,2-di-O-dodecanoyl-sn-glycerol. In the first one, the key step was the glycosylation of the 3-O-(2,3,4-tri-O-benzyl-beta-D-galactopyranosyl)- 1, 2-O-isopropylidene-sn-glycerol acceptor with 2-pyridyl 2,3,4,6-tetra-O-benzyl-1-thio-beta-D-galactopyranoside as the donor. In the second one, the key step was the coupling of 2,3,4-tri-O-acetyl-6-O-(2,3,4,6-tetra-O-benzyl-alpha-D-galactopyranosyl)-D-galactopyranosyl trichloroacetimidate donor with 1,2-O-isopropylidene-sn-glycerol. Even though the number of steps was the same in both pathways, the first one afforded a better overall yield (12.4%) than the second one (6.5%). This eight-step synthesis allowed the preparation of the expected glycolipid, which was used as substrate for recombinant GPLRP2 galactolipase using the monomolecular film technique. (c) 2006 Elsevier Ltd. All rights reserved.
• Synthesis of α- and β-glycopyranosides via 1-0-alkylation
  作者：R.R. Schmidt、U. Moering、M. Reichrath

  DOI：10.1016/0040-4039(80)80236-x

  日期：1980.1

  1-0-Alkylation of partly protected glucopyranose 1 and galactopyranose 13 led to a convenient, short term synthesis of β-glycosides and β-disaccharides 4a–d and 14. Glucopyranose 2 with a bulky protective group at 0–6 yielded exclusively the α-anomer (isomaltoside derivative) 5.

  部分保护的吡喃葡萄糖1和半乳糖吡喃糖13的1-0烷基化导致β-糖苷和β-二糖4a-d和14的便捷，短期合成。在0-6带有较大保护基的葡糖醛糖2仅产生α。 -异头物（异麦芽糖苷衍生物）5。