6-O-acetyl-3-azido-2,4-di-O-benzyl-3-deoxy-D-glucopyranosyl trichloroacetimidate | 1417719-84-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 6-O-acetyl-3-azido-2,4-di-O-benzyl-3-deoxy-D-glucopyranosyl trichloroacetimidate
• CAS: 1417719-84-6
• 化学式: C₂₄H₂₅Cl₃N₄O₆
• 分子量: 571.845
• InChiKey: CUBGCPNSTJTJPM-PVIWCNJMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.49
• 重原子数：
  37.0
• 可旋转键数：
  10.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  135.83
• 氢给体数：
  1.0
• 氢受体数：
  8.0

反应信息

• 作为反应物：
  描述：

  6-O-acetyl-3-azido-2,4-di-O-benzyl-3-deoxy-D-glucopyranosyl trichloroacetimidate 在 三氟甲磺酸三甲基硅酯 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 以45%的产率得到6-O-acetyl-3-azido-2,4-di-O-benzyl-3-deoxy-a-D-glucopyranosyl-(1→1')-6-O-acetyl-3'-azido-2',4'-di-O-benzyl-3'-deoxy-b-D-glucopyranoside
  参考文献：
  名称：

  Synthesis of 3,3′-neotrehalosadiamine and related 1,1′-aminodisaccharides using disarmed, armed, and superarmed building blocks

  摘要：

  Here we report a high yielding, stereoselective synthesis of the naturally occurring 1,1'-disaccharide neotrehalosadiamine (NTD) and some related analogs. Following an eleven-step sequence, seven of which did not require chromatographic separation, NTD was generated in 60% overall yield from the inexpensive, commercially available precursor 1,2:5,6-di-O-isopropylidene-alpha-D-glucofuranose. The key alpha,beta-linkage of NTD was formed in a highly stereoselective manner by taking advantage of the participating effect of the acyl group at O-2 of the donor glycoside. The influence of electronic effects of disarmed, armed, and superarmed glycosyl donors and acceptors on the outcome of 1,1'-glycosidation was also observed. Antibacterial studies using NTD and its analogs show detectable but weak antistaphylococcal activity. (c) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2012.10.058
• 作为产物：
  描述：

  1,2:5,6-di-O-isopropylidene-α-D-glucofuranose 在 吡啶 、 乙酸铵 、 盐酸 、 sodium azide 、 硫酸 、 sodium hydride 、 caesium carbonate 作用下， 以 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 51.25h， 生成 6-O-acetyl-3-azido-2,4-di-O-benzyl-3-deoxy-D-glucopyranosyl trichloroacetimidate
  参考文献：
  名称：

  Synthesis of 3,3′-neotrehalosadiamine and related 1,1′-aminodisaccharides using disarmed, armed, and superarmed building blocks

  摘要：

  Here we report a high yielding, stereoselective synthesis of the naturally occurring 1,1'-disaccharide neotrehalosadiamine (NTD) and some related analogs. Following an eleven-step sequence, seven of which did not require chromatographic separation, NTD was generated in 60% overall yield from the inexpensive, commercially available precursor 1,2:5,6-di-O-isopropylidene-alpha-D-glucofuranose. The key alpha,beta-linkage of NTD was formed in a highly stereoselective manner by taking advantage of the participating effect of the acyl group at O-2 of the donor glycoside. The influence of electronic effects of disarmed, armed, and superarmed glycosyl donors and acceptors on the outcome of 1,1'-glycosidation was also observed. Antibacterial studies using NTD and its analogs show detectable but weak antistaphylococcal activity. (c) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2012.10.058