(2R,3S,4S,5S,6R)-5-Benzyloxy-6-ethylsulfanyl-2-isobutoxymethyl-tetrahydro-pyran-3,4-diol | 400835-48-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (2R,3S,4S,5S,6R)-5-Benzyloxy-6-ethylsulfanyl-2-isobutoxymethyl-tetrahydro-pyran-3,4-diol
• CAS: 400835-48-5
• 化学式: C₁₉H₃₀O₅S
• 分子量: 370.51
• InChiKey: PRSBIUBEPGMRPD-ZSXDVEMLSA-N

物化性质

• 沸点：
  518.5±50.0 °C(Predicted)
• 密度：
  1.17±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.44
• 重原子数：
  25.0
• 可旋转键数：
  9.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.68
• 拓扑面积：
  68.15
• 氢给体数：
  2.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  (2R,3S,4S,5S,6R)-5-Benzyloxy-6-ethylsulfanyl-2-isobutoxymethyl-tetrahydro-pyran-3,4-diol 、 碘甲烷 在 双(三甲基硅烷基)氨基钾 作用下， 以87%的产率得到ethyl-2-O-benzyl-6-O-isobutyl-3,4-di-O-methyl-1-thio-α-D-mannopyranoside
  参考文献：
  名称：

  Design, Synthesis, and Biological Evaluation ofα4β1 Integrin Antagonists Based onβ-D-Mannose as Rigid Scaffold

  摘要：

  A cyclic peptide role model was used for the design and synthesis of a new class of biologically active and α4 -selective integrin antagonists (e.g. 1) based on β-D-mannose. These carbohydrate-based peptidomimetics were synthesized to include the functional groups of their cyclic peptide precursors without the redundant amide backbone.

  DOI：

  10.1002/1521-3773(20011015)40:20<3870::aid-anie3870>3.0.co;2-x
• 作为产物：
  描述：

  ethyl 1-thio-α-D-mannopyranoside 在 咪唑 、 camphor-10-sulfonic acid 、 四丁基氟化铵 、 双(三甲基硅烷基)氨基钾 、 三氟乙酸 、 原甲酸三甲酯 作用下， 以 四氢呋喃 、 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 生成 (2R,3S,4S,5S,6R)-5-Benzyloxy-6-ethylsulfanyl-2-isobutoxymethyl-tetrahydro-pyran-3,4-diol
  参考文献：
  名称：

  Design, Synthesis, and Biological Evaluation ofα4β1 Integrin Antagonists Based onβ-D-Mannose as Rigid Scaffold

  摘要：

  A cyclic peptide role model was used for the design and synthesis of a new class of biologically active and α4 -selective integrin antagonists (e.g. 1) based on β-D-mannose. These carbohydrate-based peptidomimetics were synthesized to include the functional groups of their cyclic peptide precursors without the redundant amide backbone.

  DOI：

  10.1002/1521-3773(20011015)40:20<3870::aid-anie3870>3.0.co;2-x

文献信息

• Synthesis and Structure−Activity Relationship of Mannose-Based Peptidomimetics Selectively Blocking Integrin α4β7 Binding to Mucosal Addressin Cell Adhesion Molecule-1
  作者：Elsa Locardi、Jürgen Boer、Armin Modlinger、Anja Schuster、Bernhard Holzmann、Horst Kessler

  DOI：10.1021/jm020487h

  日期：2003.12.1

  As part of our ongoing research in the development of alpha4beta7 integrin antagonists, we are interested in peptidomimetics based on a rigid scaffold to allow the display of essential side chains in a suitable binding conformation while eliminating backbone amide bonds and therefore improving pharmacokinetic parameters of the drug. Except for a few examples, peptidomimetics scaffolds have only been moderately successful and often yield molecules that lack the potency of their peptide counterparts. However, we present herein a successful application of using a rigid scaffold. Starting from a mannopyranoside analogue previously discovered in our laboratory as an inhibitor of the alpha4beta1/vascular cell adhesion molecule interaction, a biased library of functionalized carbohydrates was developed. One compound emerged from this library as an active and selective antagonist toward the alpha4beta7/mucosal addressin cell adhesion molecule interaction. Conformational. implications and the relevance of different pharmacophoric patterns will be discussed in order to explain the reverse selectivity and enhanced affinity.