(2R,3S,4R,5R)-2-(hydroxymethyl)-5-(2-(methylamino)-9H-purin-9-yl)tetrahydrofuran-3,4-diol | 1260177-37-4

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘌呤核苷
• 英文名称: (2R,3S,4R,5R)-2-(hydroxymethyl)-5-(2-(methylamino)-9H-purin-9-yl)tetrahydrofuran-3,4-diol
• 英文别名: 2-MeNH-nebularine；2-methylaminonebularine；(2R,3S,4R,5R)-2-(hydroxymethyl)-5-[2-(methylamino)purin-9-yl]oxolane-3,4-diol
• CAS: 1260177-37-4
• 化学式: C₁₁H₁₅N₅O₄
• 分子量: 281.271
• InChiKey: PHVMZWAUIFXZGZ-FDDDBJFASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.4
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  126
• 氢给体数：
  4
• 氢受体数：
  8

反应信息

• 作为产物：
  描述：

  2-amino-9-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)purine 在 三甲基氯硅烷 、 亚硝酸苄基三乙基铵 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 反应 19.0h， 生成 (2R,3S,4R,5R)-2-(hydroxymethyl)-5-(2-(methylamino)-9H-purin-9-yl)tetrahydrofuran-3,4-diol
  参考文献：
  名称：

  Investigations into the Origin of the Molecular Recognition of Several Adenosine Deaminase Inhibitors

  摘要：

  Inhibitors of adenosine deaminase (ADA, EC 3 5 4 4) are potential therapeutic agents for the treatment of various health disorders Several highly potent inhibitors were previously identified, yet they exhibit unacceptable toxicities We performed a SAR study involving a series of C2 or C8 substituted purine-riboside analogues with a view to discover less potent inhibitors with a lesser toxicity We found that any substitution at C8 position of nebularine resulted in total loss of activity toward calf intestinal ADA However several 2-substituted-adenosine, 8-aza-adenosine, and nebularine analogues exhibited inhibitory activity Specifically, 2-Cl-purine riboside, 8-aza-2-thiohexyl adenosine, 2-thiohexyl adenosine, and 2-MeS-purine riboside were found to be competitive inhibitors of ADA with K-i values of 25, 22, 6, and 3 mu M, respectively We concluded that electronic parameters are not major recognition determinants of ADA but rather steric parameters A C2 substituent which fits ADA hydrophobic pocket and improves H-bonding with the enzyme makes a good inhibitor In addition, a gg rotamer about C4'-C5' bond is apparently an important recognition determinant

  DOI：

  10.1021/jm101286g

文献信息

• Investigations into the Origin of the Molecular Recognition of Several Adenosine Deaminase Inhibitors
  作者：Irina Gillerman、Bilha Fischer

  DOI：10.1021/jm101286g

  日期：2011.1.13

  Inhibitors of adenosine deaminase (ADA, EC 3 5 4 4) are potential therapeutic agents for the treatment of various health disorders Several highly potent inhibitors were previously identified, yet they exhibit unacceptable toxicities We performed a SAR study involving a series of C2 or C8 substituted purine-riboside analogues with a view to discover less potent inhibitors with a lesser toxicity We found that any substitution at C8 position of nebularine resulted in total loss of activity toward calf intestinal ADA However several 2-substituted-adenosine, 8-aza-adenosine, and nebularine analogues exhibited inhibitory activity Specifically, 2-Cl-purine riboside, 8-aza-2-thiohexyl adenosine, 2-thiohexyl adenosine, and 2-MeS-purine riboside were found to be competitive inhibitors of ADA with K-i values of 25, 22, 6, and 3 mu M, respectively We concluded that electronic parameters are not major recognition determinants of ADA but rather steric parameters A C2 substituent which fits ADA hydrophobic pocket and improves H-bonding with the enzyme makes a good inhibitor In addition, a gg rotamer about C4'-C5' bond is apparently an important recognition determinant