(2R,3R,4S,5R)-2-(2-Amino-6-ethylamino-purin-9-yl)-5-hydroxymethyl-tetrahydro-furan-3,4-diol | 177949-65-4

• 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,3R,4S,5R)-2-(2-Amino-6-ethylamino-purin-9-yl)-5-hydroxymethyl-tetrahydro-furan-3,4-diol
• CAS: 177949-65-4
• 化学式: C₁₂H₁₈N₆O₄
• 分子量: 310.313
• InChiKey: DYUUBGFOLQRPCY-IOSLPCCCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.55
• 重原子数：
  22.0
• 可旋转键数：
  4.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.58
• 拓扑面积：
  151.57
• 氢给体数：
  5.0
• 氢受体数：
  10.0

反应信息

• 作为产物：
  描述：

  [(2R,3R,4R,5R)-5-(2-acetamido-6-sulfanylidene-3H-purin-9-yl)-3,4-diacetyloxyoxolan-2-yl]methyl acetate 在 氨 、 二甲基二环氧乙烷 作用下， 以 二氯甲烷 、 丙酮 为溶剂， 生成 (2R,3R,4S,5R)-2-(2-Amino-6-ethylamino-purin-9-yl)-5-hydroxymethyl-tetrahydro-furan-3,4-diol
  参考文献：
  名称：

  二甲基二环氧乙烷氧化后硫代嘧啶和硫嘌呤核苷的转化

  摘要：

  报道了通过用二甲基二环氧乙烷选择性氧化硫代核苷来合成几种嘧啶和嘌呤核苷的通用且方便的方法。嘧啶环的C-4位，嘌呤环的C-6和C-8位的Thioketo部分是氧化亲核取代的结构域。嘌呤和嘧啶环的C-2位的Thioketo部分是脱硫或二硫化物形成的区域。

  DOI：

  10.1016/0040-4020(96)00289-x

文献信息

• Adenosine Analogues as Inhibitors of <i>Trypanosoma </i><i>b</i><i>rucei </i>Phosphoglycerate Kinase:  Elucidation of a Novel Binding Mode for a 2-Amino-N⁶-Substituted Adenosine
  作者：Jerome C. Bressi、Jungwoo Choe、Melinda T. Hough、Frederick S. Buckner、Wesley C. Van Voorhis、Christophe L. M. J. Verlinde、Wim G. J. Hol、Michael H. Gelb

  DOI：10.1021/jm000287a

  日期：2000.11.1

  As part of a project aimed at structure-based design of adenosine analogues as drugs against African trypanosomiasis, N-6-, 2-amino-N-6-, and N-2-substituted adenosine analogues were synthesized and tested to establish structure-activity relationships for inhibiting Trypanosoma brucei glycosomal phosphoglycerate kinase (PGK), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), and glycerol-3-phosphate dehydrogenase (GPDH). Evaluation of X-ray structures of parasite PGK, GAPDH, and GPDH complexed with their adenosyl-bearing substrates led us to generate a series of adenosine analogues which would target all three enzymes simultaneously. There was a modest preference by PGK for NG-substituted analogues bearing the 2-amino group. The best compound in this series, 2-amino-N-6-[2 "-(p-hydroxyphenyl)ethyl]adenosine (46b), displayed a 23-fold improvement over adenosine with an IC50 of 130 muM. 2-[[2 "-(p-Hydroxyphenyl)ethyl]amino]adenosine (46c) was a weak inhibitor of T. brucei PGK with an IC50 of 500 muM. To explore the potential of an additive effect that having the N-6 and N-2 substitutions in one molecule might provide, the best ligands from the two series were incorporated into N-6,N-2-disubstituted adenosine analogues to yield N-6-(2 " -phenylethyl)-2-[(2 " -phenylethyl)amino]adenosine (69) as a 30 muM inhibitor of T. brucei PGK which is 100-fold more potent than the adenosine template. In contrast, these series gave no compounds that inhibited parasitic GAPDH or GPDH more than 10-20% when tested at 1.0 mM. A 3.0 Angstrom X-ray structure of a T, brucei PGK/46b complex revealed a binding mode in which the nucleoside analogue was flipped and the ribosyl moiety adopted a syn conformation as compared with the previously determined binding mode of ADP. Molecular docking experiments using QXP and SAS program suites reproduced this "flipped and rotated" binding mode.