benzyl 2-O-acetyl-3,4-dideoxy-α-D-glycero-pent-3-enopyranoside | 70798-32-2

• 分子结构分类: 有机化合物 - 有机杂环化合物
• 英文名称: benzyl 2-O-acetyl-3,4-dideoxy-α-D-glycero-pent-3-enopyranoside
• 英文别名: benzyl 3,4-dideoxy-2-O-acetyl-α-D-glyceropent-3-enopyranoside；[(2R,3R)-2-phenylmethoxy-3,6-dihydro-2H-pyran-3-yl] acetate
• CAS: 70798-32-2
• 化学式: C₁₄H₁₆O₄
• 分子量: 248.279
• InChiKey: QLFRSRHPFMYTDS-ZIAGYGMSSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  18
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  benzyl 2-O-acetyl-3,4-dideoxy-α-D-glycero-pent-3-enopyranoside 在 重铬酸吡啶 、 sodium methylate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 15.0h， 生成 (2R)-2-benzyloxy-2H-pyran-3(6H)-one
  参考文献：
  名称：

  Enantiospecific Synthesis of Both Enantiomers of 2-Benzyloxydihydropyran-3-ones from Arabinose

  摘要：

  本文介绍了对映体选择性合成有用构筑物 (2R)- 和 (2S)-2- 苄氧基-2(H)-吡喃-3(6H)-酮（分别为 12 和 17）的方法。合成 12 的最直接和高产路线是基于从苄基 ²-l- 或 ²-d- 阿拉伯吡喃糖苷（1 和 13）"一步法 "制备苄基 2-O- 乙酰基-阿拉伯吡喃糖苷 3,4-硫代碳酸酯（7 和 14）。通过亚磷酸三甲基酯促进的烯化反应，然后进行 O-去乙酰化和氧化反应，得到了光学纯度为 50%的对映体烯酮 12 和 17。

  DOI：

  10.1055/s-2005-861833
• 作为产物：
  描述：

  benzyl 2-O-acetyl-3,4-di-O-isopropylidene-β-L-arabinopyranoside 在 吡啶 、 三氟乙酸 、 sodium iodide 、 锌 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 反应 76.5h， 生成 benzyl 2-O-acetyl-3,4-dideoxy-α-D-glycero-pent-3-enopyranoside
  参考文献：
  名称：

  Enantiospecific Synthesis of Both Enantiomers of 2-Benzyloxydihydropyran-3-ones from Arabinose

  摘要：

  本文介绍了对映体选择性合成有用构筑物 (2R)- 和 (2S)-2- 苄氧基-2(H)-吡喃-3(6H)-酮（分别为 12 和 17）的方法。合成 12 的最直接和高产路线是基于从苄基 ²-l- 或 ²-d- 阿拉伯吡喃糖苷（1 和 13）"一步法 "制备苄基 2-O- 乙酰基-阿拉伯吡喃糖苷 3,4-硫代碳酸酯（7 和 14）。通过亚磷酸三甲基酯促进的烯化反应，然后进行 O-去乙酰化和氧化反应，得到了光学纯度为 50%的对映体烯酮 12 和 17。

  DOI：

  10.1055/s-2005-861833

文献信息

• Synthesis and inhibition properties of a series of pyranose derivatives towards a Zn-metalloproteinase from Saccharomonospora canescens
  作者：Pavlina Dolashka-Angelova、Raid J. Abdel-Jalil、Raed A. Al-Qawasmeh、Nicolina Stambolieva、Wolfgang Voelter

  DOI：10.1016/j.carres.2010.07.038

  日期：2010.11

  The Zn-proteinase, isolated from Saccharomonospora canescens (NPS), shares many common features with thermolysin, but considerable differences are also evident, as far as the substrate recognition site is concerned. In substrates of general structure AcylAlaAlaPhe 4NA, this neutral proteinase cleaves only the arylamide bond (non-typical activity of Zn-proteinases), while thermolysin attacks the peptide bond Ala-Phe. Phosphoramidon is a powerful tight binding inhibitor for thermolysin and significantly less specific towards NPS. The K-i-values (65 mu M for NPS vs 0.034 mu M for thermolysin) differ nearly 2000-folds. This implies significant differences in the specificity of the corresponding subsites. The carbohydrate moiety is supposed to accommodate in the S-1-subsite and the series of arabinopyranosides and glucopyranosides (12 compounds), which are assayed as inhibitors in a model system: NPS with SucAlaAlaPhe4NA as a substrate could be considered as mapping the S-1-subsite of NPS. Members of the series with an additional ring (3,4-epithio, 3,4-anhydro-derivatives) turned out to be reasonably good competitive inhibitors (K-i approximate to 0.1-0.2 mM are of the same order as the value for phosphoramidon). The structure of these compounds (8, 9, 11 and 12) seems to fit the size of the S-1-subsite and due to an appropriately oriented OH-group in addition, to protect the active site Zn2+. (C) 2010 Published by Elsevier Ltd.