p-methoxyphenyl 4-O-(α-L-rhamnopyranosyl)-α-D-glucopyranosyl-(1→2)-β-D-glucopyranoside | 1453195-50-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: p-methoxyphenyl 4-O-(α-L-rhamnopyranosyl)-α-D-glucopyranosyl-(1→2)-β-D-glucopyranoside
• 英文别名: Glc(a1-2)[Rha(a1-4)]Glc(b)-O-Ph(4-OMe)；(2S,3R,4R,5R,6S)-2-[(2R,3S,4S,5R,6S)-4-hydroxy-2-(hydroxymethyl)-6-(4-methoxyphenoxy)-5-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-3-yl]oxy-6-methyloxane-3,4,5-triol
• CAS: 1453195-50-0
• 化学式: C₂₅H₃₈O₁₆
• 分子量: 594.567
• InChiKey: CTJABUIRSQEGMX-ZHAJOQHBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3.5
• 重原子数：
  41
• 可旋转键数：
  9
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.76
• 拓扑面积：
  247
• 氢给体数：
  9
• 氢受体数：
  16

反应信息

• 作为产物：
  描述：

  p-methoxyphenyl 4,6-di-O-acetyl-2,3-di-O-benzyl-α-D-glucopyranosyl-(1→2)-6-O-benzyl-3-O-benzoyl-4-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-β-D-glucopyranoside 在 palladium 10% on activated carbon 、 氢气 、 sodium methylate 、 乙酸酐 作用下， 以 甲醇 为溶剂， 反应 12.0h， 生成 p-methoxyphenyl 4-O-(α-L-rhamnopyranosyl)-α-D-glucopyranosyl-(1→2)-β-D-glucopyranoside
  参考文献：
  名称：

  Concise synthesis of the trisaccharide repeating unit of the O-polysaccharide from Aeromonas hydrophila A19 (O:14)

  摘要：

  Chemical synthesis of the trisaccharide repeating unit of the O-polysaccharide from Aeromonas hydrophila A19 (O:14) is reported in the form of its p-methoxyphenyl glycosides. Suitably protected monosaccharide synthons were prepared either by literature procedure or by strategies developed in house. Stereoselective glycosylations were accomplished by the activation of thioglycosides using N-iodosuccinimide in conjunction with H2SO4-silica in good to excellent yields. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2013.06.009