phenyl 3-azido-2-O-benzyl-4,6-O-benzylidene-3-deoxy-1-thio-β-D-glucopyranoside | 868258-57-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: phenyl 3-azido-2-O-benzyl-4,6-O-benzylidene-3-deoxy-1-thio-β-D-glucopyranoside
• 英文别名: (2R,4aR,6S,7R,8S,8aS)-8-azido-2-phenyl-7-phenylmethoxy-6-phenylsulfanyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxine
• CAS: 868258-57-5
• 化学式: C₂₆H₂₅N₃O₄S
• 分子量: 475.568
• InChiKey: XRXSKFFTLOFOLO-CNGGBCMRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.8
• 重原子数：
  34
• 可旋转键数：
  7
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  76.6
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  phenyl 3-azido-2-O-benzyl-4,6-O-benzylidene-3-deoxy-1-thio-β-D-glucopyranoside 在 吡啶 、 三氯化铝 、 硼烷-三甲胺络合物 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 0.5h， 生成 phenyl 4-O-acetyl-3-azido-2,6-di-O-benzyl-3-deoxy-1-thio-β-D-galactopyranoside
  参考文献：
  名称：

  Glycodiversification for the Optimization of the Kanamycin Class Aminoglycosides

  摘要：

  In an effort to optimize the antibacterial activity of kanamycin class aminoglycoside antibiotics, we have accomplished the synthesis and antibacterial assay of new kanamycin B analogues. A rationale-based glycodiversification strategy was employed. The activity of the lead is comparable to that of commercially available kanamycin. These new members, however, were found to be inactive against aminoglycoside resistant bacteria. Molecular modeling was used to provide the explanation. Thus, a new strategy for structural modifications of kanamycin class aminoglycosides is suggested.

  DOI：

  10.1021/jm050368c
• 作为产物：
  描述：

  3-azido-1,3-dideoxy-1-(phenylsulfenyl)-2,4,6-tri-O-acetyl-β-D-gluco-pyranose 在 sodium methylate 、 四丁基碘化铵 、 sodium hydride 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 1.5h， 生成 phenyl 3-azido-2-O-benzyl-4,6-O-benzylidene-3-deoxy-1-thio-β-D-glucopyranoside
  参考文献：
  名称：

  Glycodiversification for the Optimization of the Kanamycin Class Aminoglycosides

  摘要：

  In an effort to optimize the antibacterial activity of kanamycin class aminoglycoside antibiotics, we have accomplished the synthesis and antibacterial assay of new kanamycin B analogues. A rationale-based glycodiversification strategy was employed. The activity of the lead is comparable to that of commercially available kanamycin. These new members, however, were found to be inactive against aminoglycoside resistant bacteria. Molecular modeling was used to provide the explanation. Thus, a new strategy for structural modifications of kanamycin class aminoglycosides is suggested.

  DOI：

  10.1021/jm050368c

文献信息

• Structure–Activity Relationships for Antibacterial to Antifungal Conversion of Kanamycin to Amphiphilic Analogues
  作者：Marina Fosso、Madher N. AlFindee、Qian Zhang、Vincent de Paul Nzuwah Nziko、Yukie Kawasaki、Sanjib K. Shrestha、Jeremiah Bearss、Rylee Gregory、Jon Y. Takemoto、Cheng-Wei Tom Chang

  DOI：10.1021/acs.joc.5b00248

  日期：2015.5.1

  Novel fungicides are urgently needed. It was recently reported that the attachment of an octyl group at the O-4 '' position of kanamycin B converts this antibacterial aminoglycoside into a novel antifungal agent. To elucidate the structure-activity relationship (SAR) for this phenomenon, a lead compound FG03 with a hydroxyl group replacing the 3 ''-NH2 group of kanamycin B was synthesized. FG03's antifungal activity and Synthetic scheme inspired the synthesis of a library of kanamycin B analogues alkylated at various hydroxyl groups. SAR. studies of the library revealed that for antifungal activity the O-4 '' position is the optimal site for attaching a linear alkyl chain and that the 3 ''-NH2 and 6 ''-OH groups of the kanamycin B parent molecule are not essential for antifungal activity. The discovery of lead compound, FG03, is an example of reviving clinically obsolete drugs like kanamycin by simple chemical modification and an alternative strategy for discovering novel antimicrobials.