4-methoxyphenyl 2-O-acetyl-3,4-di-O-benzoyl-β-D-galactopyranoside | 634603-10-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 4-methoxyphenyl 2-O-acetyl-3,4-di-O-benzoyl-β-D-galactopyranoside
• 英文别名: Bz(-3)[Bz(-4)]Gal2Ac(b)-O-Ph(4-OMe)；[(2R,3S,4S,5R,6S)-5-acetyloxy-4-benzoyloxy-2-(hydroxymethyl)-6-(4-methoxyphenoxy)oxan-3-yl] benzoate
• CAS: 634603-10-4
• 化学式: C₂₉H₂₈O₁₀
• 分子量: 536.535
• InChiKey: SGQWLTUJFDSNFM-MXCNSHPNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  39
• 可旋转键数：
  12
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.28
• 拓扑面积：
  127
• 氢给体数：
  1
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  4-methoxyphenyl 2-O-acetyl-3,4-di-O-benzoyl-β-D-galactopyranoside 在 ammonium cerium(IV) nitrate 、 三氟甲磺酸三甲基硅酯 作用下， 以 二氯甲烷 、 水 、 乙腈 为溶剂， 反应 2.5h， 生成 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->6)-2-O-acetyl-3,4-di-O-benzoyl-α-D-galactopyranosyl trichloroacetimidate
  参考文献：
  名称：

  Domain decomposition methods of dual-primal FETI type for edge element approximations in three dimensions

  摘要：

  We consider domain decomposition algorithms of FETI type for edge element approximations in three dimensions. We first show that a strong coupling exists between tangential degrees of freedom associated to the subdomain edges and faces. We then propose a dual-primal FETI algorithm that relies on a change of basis and on a suitable choice of a coarse space. We give a logarithmic bound for the condition number of the resulting preconditioned operator. Numerical results confirm this bound and the necessity of performing a change of basis. (C) 2004 Academie des sciences. Published by Elsevier SAS. All fights reserved.

  DOI：

  10.1016/j.crma.2004.09.021
• 作为产物：
  描述：

  (2R,3S,4S,5R)-5,6-diacetoxy-2-(acetoxymethyl)tetrahydro-2H-pyran-3,4-diyl dibenzoate 在 三氟甲磺酸三甲基硅酯 、 potassium carbonate 、 乙酰氯 、 苄胺 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 73.0h， 生成 4-methoxyphenyl 2-O-acetyl-3,4-di-O-benzoyl-β-D-galactopyranoside
  参考文献：
  名称：

  Domain decomposition methods of dual-primal FETI type for edge element approximations in three dimensions

  摘要：

  We consider domain decomposition algorithms of FETI type for edge element approximations in three dimensions. We first show that a strong coupling exists between tangential degrees of freedom associated to the subdomain edges and faces. We then propose a dual-primal FETI algorithm that relies on a change of basis and on a suitable choice of a coarse space. We give a logarithmic bound for the condition number of the resulting preconditioned operator. Numerical results confirm this bound and the necessity of performing a change of basis. (C) 2004 Academie des sciences. Published by Elsevier SAS. All fights reserved.

  DOI：

  10.1016/j.crma.2004.09.021

文献信息

• A concise synthesis of arabinogalactan with β-(1→6) galactopyranose backbone and α-(1→2) arabinofuranose side chains
  作者：Ying Zeng、Aixiao Li、Fanzuo Kong

  DOI：10.1016/j.tetlet.2003.08.087

  日期：2003.11

  Penta- and octasaccharides composed of β-(1→6)-linked galactose backbone with α-(1→2)-linked arabinose branches were synthesized through coupling of α-(1→5)-linked arabinofuranosyl disaccharide donor with a tri- and tetrasaccharide backbone at C-2, respectively.

  通过将α-（1→5）连接的阿拉伯呋喃糖基二糖供体与三-α-（1→5）连接的阿拉伯呋喃糖基二糖供体偶联，合成由β-（1→6）连接的半乳​​糖骨架和α-（1→2）连接的阿拉伯糖支组成的五糖和八糖。 C-2分别为四糖主链和四糖主链。