2,4,6-tri-O-acetyl-3-azido-3-deoxy-α-D-glucopyranosyl trichloroacetimidate | 485809-82-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2,4,6-tri-O-acetyl-3-azido-3-deoxy-α-D-glucopyranosyl trichloroacetimidate
• 英文别名: 3-azido-2,4,6-tri-O-acetyl-3-deoxy-α-D-glucopyranosyl trichloroacetimidate；2,4,6-tri-O-acetyl-3-azido-3-deoxy-a-D-glucopyranosyltrichloroacetimidate；[(2R,3S,4S,5R,6R)-3,5-diacetyloxy-4-azido-6-(2,2,2-trichloroethanimidoyl)oxyoxan-2-yl]methyl acetate
• CAS: 485809-82-3
• 化学式: C₁₄H₁₇Cl₃N₄O₈
• 分子量: 475.67
• InChiKey: GPZJYOAFULRADA-IYKVGLELSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  29
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  136
• 氢给体数：
  1
• 氢受体数：
  11

反应信息

• 作为反应物：
  描述：

  2,4,6-tri-O-acetyl-3-azido-3-deoxy-α-D-glucopyranosyl trichloroacetimidate 在 4 A molecular sieve 、 potassium carbonate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 1.0h， 生成 (2S,3R,4S,5S,6R)-4-Azido-2-[(1R,2R,3S,5R,6S)-3,5-diazido-2-((2R,3R,4R,5R,6R)-3-azido-6-azidomethyl-4,5-bis-benzyloxy-tetrahydro-pyran-2-yloxy)-6-benzyloxy-cyclohexyloxy]-6-hydroxymethyl-tetrahydro-pyran-3,5-diol
  参考文献：
  名称：

  Pyranmycins, a Novel Class of Aminoglycosides with Improved Acid Stability:  The SAR of d-Pyranoses on Ring III of Pyranmycin

  摘要：

  The synthesis of a novel class of aminoglycosides, pyranmycins, is reported along with the structure activity relationship (SAR) of their antibacterial activity against Escherichia coli. Two pyranmycins show prominent activity (9 muM). Pyranmycins also manifest superior stability in acidic media. The SAR information will lead to the future designs of pyranmycin against drug resistant bacteria.

  DOI：

  10.1021/ol0269042
• 作为产物：
  描述：

  1,2,4,6-tetra-O-acetyl-3-azido-3-deoxy-D-glucopyranose 在 乙酸铵 、 caesium carbonate 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 22.0h， 生成 2,4,6-tri-O-acetyl-3-azido-3-deoxy-α-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

文献信息

• Synthesis of Complex Oligosaccharides by Using a Mutated (1,3)--D-Glucan Endohydrolase from Barley
  作者：Jon K. Fairweather、Maria Hrmova、Simon J. Rutten、Geoffrey B. Fincher、Hugues Driguez

  DOI：10.1002/chem.200304733

  日期：2003.6.6

  Complex oligosaccharides with newly formed (1,3)-beta-glycosidic linkages were obtained in good to excellent yields when substituted or unsubstituted alpha-laminaribiosyl fluorides, acting as donors, were condensed onto mono- and disaccharide beta-D-hexopyranoside acceptors by using a (1,3)-beta-D-glycosynthase. These linear and branched (1,3)-beta-linked oligosaccharides could prove to be important

  当取代或未取代的α-laminaribiosyl氟化物，作为供体，通过缩合生成单糖和二糖β-D-己基吡喃糖苷受体时，可以良好的产率获得具有新形成的（1,3）-β-糖苷键的复杂寡糖。 （1,3）-β-D-糖基合成酶。这些线性和分支的（1,3）-β-连接的寡糖在医疗，制药和农业应用领域中可能被证明是重要的。此外，观察到（1,3）-β-D-葡聚糖葡糖合酶在其受体亚位点中容纳了（1,3）-，（1,4），-和（1,6）-β-寡糖，但来自高等植物的野生型（1,3）-β-D-葡聚糖内切酶的生理作用却出乎意料。