benzyl 2,6-dideoxy-4-O-(p-methoxybenzyl)-α-L-xylo-hexopyranoside | 1133162-41-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: benzyl 2,6-dideoxy-4-O-(p-methoxybenzyl)-α-L-xylo-hexopyranoside
• 英文别名: (2S,3S,4R,6R)-3-[(4-methoxyphenyl)methoxy]-2-methyl-6-phenylmethoxyoxan-4-ol
• CAS: 1133162-41-0
• 化学式: C₂₁H₂₆O₅
• 分子量: 358.434
• InChiKey: DNTIOXWMWMSRFS-LWILDLIXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  26
• 可旋转键数：
  7
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  57.2
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  benzyl 2,6-dideoxy-4-O-(p-methoxybenzyl)-α-L-xylo-hexopyranoside 在 戴斯-马丁氧化剂 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以94%的产率得到benzyl 2,6-dideoxy-4-O-(p-methoxybenzyl)-α-L-threo-hexopyranosid-3-ulose
  参考文献：
  名称：

  2,3-Anhydrosugars in Glycoside Bond Synthesis. Application to 2,6-Dideoxypyranosides

  摘要：

  We describe here the first use of 2,3-anhydrosugars as glycosylating agents for the preparation of 2-deoxypyranosides. In particular, the methodology was used to assemble 2,6-dideoxysugar glycosides. Glycosylation of a panel of alcohols with one of two 6-deoxy-2,3-anhydrosugar thioglycosides (8 and 9) in the presence of a Lewis acid afforded 2,6-dideoxy-2-thiotolyl glycoside products in generally excellent yields with an exclusively syn relationship between the aglycon and the C-3 hydroxyl group. Removal of the 2-thiotolyl group can be achieved upon reaction with tri-n-butyltin hydride and AIBN to give the corresponding 2,6-dideoxy pyranosides. Once developed, the method was applied to the synthesis of oligosaccharide moieties in the natural products apoptolidin and olivomycin A.

  DOI：

  10.1021/jo900131a
• 作为产物：
  描述：

  benzyl 2,6-dideoxy-4-O-(p-methoxybenzyl)-2-(p-tolylthio)-α-L-idopyranoside 在 偶氮二异丁腈 、 三正丁基氢锡 作用下， 以 甲苯 为溶剂， 反应 2.0h， 以78%的产率得到benzyl 2,6-dideoxy-4-O-(p-methoxybenzyl)-α-L-xylo-hexopyranoside
  参考文献：
  名称：

  2,3-Anhydrosugars in Glycoside Bond Synthesis. Application to 2,6-Dideoxypyranosides

  摘要：

  We describe here the first use of 2,3-anhydrosugars as glycosylating agents for the preparation of 2-deoxypyranosides. In particular, the methodology was used to assemble 2,6-dideoxysugar glycosides. Glycosylation of a panel of alcohols with one of two 6-deoxy-2,3-anhydrosugar thioglycosides (8 and 9) in the presence of a Lewis acid afforded 2,6-dideoxy-2-thiotolyl glycoside products in generally excellent yields with an exclusively syn relationship between the aglycon and the C-3 hydroxyl group. Removal of the 2-thiotolyl group can be achieved upon reaction with tri-n-butyltin hydride and AIBN to give the corresponding 2,6-dideoxy pyranosides. Once developed, the method was applied to the synthesis of oligosaccharide moieties in the natural products apoptolidin and olivomycin A.

  DOI：

  10.1021/jo900131a