2-aminoethyl 5-O-(2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl)-2,3,6-tri-O-(p-methoxybenzyl)-β-D-galactofuranoside | 946847-19-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 2-aminoethyl 5-O-(2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl)-2,3,6-tri-O-(p-methoxybenzyl)-β-D-galactofuranoside
• CAS: 946847-19-4
• 化学式: C₄₆H₅₉NO₁₈
• 分子量: 913.97
• InChiKey: KBKZDUPMCDGZAI-HCDZPIIISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.57
• 重原子数：
  65.0
• 可旋转键数：
  25.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.52
• 拓扑面积：
  223.52
• 氢给体数：
  1.0
• 氢受体数：
  19.0

反应信息

• 作为反应物：
  描述：

  2-aminoethyl 5-O-(2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl)-2,3,6-tri-O-(p-methoxybenzyl)-β-D-galactofuranoside 、 5-叠氮基萘-1-磺酰氯 在 N-甲基咪唑 作用下， 以 二氯甲烷 为溶剂， 以68%的产率得到2-(5-azidonaphthalene-1-sulfonamido)ethyl 5-O-(2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl)-2,3,6-tri-O-(p-methoxybenzyl)-β-D-galactofuranoside
  参考文献：
  名称：

  Disaccharide analogs as probes for glycosyltransferases in Mycobacterium tuberculosis

  摘要：

  Glycosyltransferases (GTs) play a crucial role in mycobacterial cell wall biosynthesis and are necessary for the survival of mycobacteria. Hence, these enzymes are potential new drug targets for the treatment of tuberculosis (TB), especially multiple drug-resistant TB (MDR-TB). Herein, we report the efficient syntheses of Araf(alpha 1 -> 5)Araf, Ga1f(beta 1 -> 5)Galf and Galf(beta 1 -> 6)Galf disaccharides possessing a 5-N,N-dimethylaminonaphthalene-l-sulfonamidoethyl (dansyl) unit that were prepared as fluorescent disaccharide acceptors for arabinosyl- and galactosyl-transferases, respectively. Such analogs may offer advantages relative to radiolabeled acceptors or donors for studying the enzymes and for assay development and compound screening. Additionally, analogs possessing a 5-azidonaphthalene-1-sulfonamidoethyl unit were prepared as photoaffinity probes for then-potential utility in studying active site labeling of the GTs (arabinosyl and galactosyl) in MYcobacterium tuberculosis (MTB). Beyond their preparation, initial biological testing and kinetic analysis of these disaccharides as acceptors toward glycosyltransferases are also presented. (C) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2007.04.012
• 作为产物：
  描述：

  2-azidoethyl 5-O-(2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl)-2,3,6-tri-O-(p-methoxybenzyl)-β-D-galactofuranoside 在 palladium on activated charcoal ammonium formate 作用下， 以 甲醇 为溶剂， 反应 4.0h， 以92%的产率得到2-aminoethyl 5-O-(2,3,5,6-tetra-O-acetyl-β-D-galactofuranosyl)-2,3,6-tri-O-(p-methoxybenzyl)-β-D-galactofuranoside
  参考文献：
  名称：

  Disaccharide analogs as probes for glycosyltransferases in Mycobacterium tuberculosis

  摘要：

  Glycosyltransferases (GTs) play a crucial role in mycobacterial cell wall biosynthesis and are necessary for the survival of mycobacteria. Hence, these enzymes are potential new drug targets for the treatment of tuberculosis (TB), especially multiple drug-resistant TB (MDR-TB). Herein, we report the efficient syntheses of Araf(alpha 1 -> 5)Araf, Ga1f(beta 1 -> 5)Galf and Galf(beta 1 -> 6)Galf disaccharides possessing a 5-N,N-dimethylaminonaphthalene-l-sulfonamidoethyl (dansyl) unit that were prepared as fluorescent disaccharide acceptors for arabinosyl- and galactosyl-transferases, respectively. Such analogs may offer advantages relative to radiolabeled acceptors or donors for studying the enzymes and for assay development and compound screening. Additionally, analogs possessing a 5-azidonaphthalene-1-sulfonamidoethyl unit were prepared as photoaffinity probes for then-potential utility in studying active site labeling of the GTs (arabinosyl and galactosyl) in MYcobacterium tuberculosis (MTB). Beyond their preparation, initial biological testing and kinetic analysis of these disaccharides as acceptors toward glycosyltransferases are also presented. (C) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2007.04.012