3,4-dimethoxybenzyl 4,6-O-benzylidene-3-O-(p-chlorobenzyl)-2-O-(p-iodobenzyl)-α-D-glucopyranoside | 1007885-84-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃二恶英
• 英文名称: 3,4-dimethoxybenzyl 4,6-O-benzylidene-3-O-(p-chlorobenzyl)-2-O-(p-iodobenzyl)-α-D-glucopyranoside
• 英文别名: (2R,4aR,6S,7R,8S,8aR)-8-[(4-chlorophenyl)methoxy]-6-[(3,4-dimethoxyphenyl)methoxy]-7-[(4-iodophenyl)methoxy]-2-phenyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxine
• CAS: 1007885-84-8
• 化学式: C₃₆H₃₆ClIO₈
• 分子量: 759.035
• InChiKey: UTBGAQDUNXEUQV-SDVUYWRGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.6
• 重原子数：
  46
• 可旋转键数：
  12
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  73.8
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  3,4-dimethoxybenzyl 4,6-O-benzylidene-3-O-(p-chlorobenzyl)-2-O-(p-iodobenzyl)-α-D-glucopyranoside 、 ethyl 3-O-benzyl-4,6-O-benzylidene-1-thio-β-D-glucopyranoside 在 4 A molecular sieve 、 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 二氯甲烷 为溶剂， 反应 4.0h， 生成
  参考文献：
  名称：

  Synthetic Studies toward Mycobacterium tuberculosis Sulfolipid-I

  摘要：

  [GRAPHICS]Sulfolipid-I (SL-I) is an abundant metabolite found in the cell wall of Mycobacterium tuberculosis that is comprised of a trehalose 2-sulfate core modified with four fatty acyl substituents. The correlation of its abundance with the virulence of clinical isolates suggests a role for SL-I in pathogenesis, although its biological functions remain unknown. Here we describe the synthesis of a SL-I analogue bearing unnatural lipid substituents. A key feature of the synthesis was application of an intramolecular aglycon delivery reaction to join two differentially protected glucose monomers, one prepared with a novel alpha-selective glycosylation. The route developed for the model compound can be readily extended to the synthesis of native SL-I as well as additional analogues for use in the investigation of SL-I's functions.

  DOI：

  10.1021/jo702032c
• 作为产物：
  描述：

  (2R,4aR,7R,8S,8aR)-6-bromo-8-[(4-chlorophenyl)methoxy]-7-[(4-iodophenyl)methoxy]-2-phenyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxine 、 3,4-二甲氧基苄醇 在 四丁基碘化铵 、 N,N-二异丙基乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 以13.49 g的产率得到3,4-dimethoxybenzyl 4,6-O-benzylidene-3-O-(p-chlorobenzyl)-2-O-(p-iodobenzyl)-α-D-glucopyranoside
  参考文献：
  名称：

  Synthetic Studies toward Mycobacterium tuberculosis Sulfolipid-I

  摘要：

  [GRAPHICS]Sulfolipid-I (SL-I) is an abundant metabolite found in the cell wall of Mycobacterium tuberculosis that is comprised of a trehalose 2-sulfate core modified with four fatty acyl substituents. The correlation of its abundance with the virulence of clinical isolates suggests a role for SL-I in pathogenesis, although its biological functions remain unknown. Here we describe the synthesis of a SL-I analogue bearing unnatural lipid substituents. A key feature of the synthesis was application of an intramolecular aglycon delivery reaction to join two differentially protected glucose monomers, one prepared with a novel alpha-selective glycosylation. The route developed for the model compound can be readily extended to the synthesis of native SL-I as well as additional analogues for use in the investigation of SL-I's functions.

  DOI：

  10.1021/jo702032c