ethyl 3-β-D-ribofuranosylpyrazolo<3,2-i>purine-9-carboxylate | 139574-46-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: ethyl 3-β-D-ribofuranosylpyrazolo<3,2-i>purine-9-carboxylate
• 英文别名: ethyl 3-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrazolo[5,1-f]purine-9-carboxylate
• CAS: 139574-46-2
• 化学式: C₁₅H₁₇N₅O₆
• 分子量: 363.33
• InChiKey: HYLKSTIAAOAXQW-LHNIVKCTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.1
• 重原子数：
  26
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  144
• 氢给体数：
  3
• 氢受体数：
  9

反应信息

• 作为产物：
  描述：

  (Z)-2-{9-[(3aR,4R,6R,6aR)-2,2-Dimethyl-6-(tetrahydro-pyran-2-yloxymethyl)-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-9H-purin-6-yl}-3-hydrazino-acrylic acid ethyl ester 在 三氟乙酸 作用下， 以 乙醇 为溶剂， 反应 2.5h， 生成 ethyl 3-β-D-ribofuranosylpyrazolo<3,2-i>purine-9-carboxylate
  参考文献：
  名称：

  6-氨基氨基嘌呤与肼的一步反应合成新型三环核苷3-β-d-呋喃核糖基吡唑并[3,2-嘌呤衍生物]

  摘要：

  3-β-D-呋喃呋喃糖基吡唑并[3,2-嘌呤-9-羧酸酯]（8）是由受完全保护的6-氯嘌呤衍生物分四步制备的，包括一步反应制备3-β-D -核呋喃糖基-[3，2-嘌呤衍生物5（由6-烯氨基嘌呤和肼），并讨论了5的形成机理。

  DOI：

  10.1016/0040-4039(91)80121-l

文献信息

• Design and Synthesis of a New Fluorescent Tricyclic Nucleoside, 3-.beta.-D-Ribofuranosylpyrazolo[3,2-i]purine
  作者：Norimitsu Hamamichi、Tadashi Miyasaka

  DOI：10.1021/jo00085a046

  日期：1994.3

  The novel nucleoside, 3-beta-D-ribofuranosylpyrazolo[3,2-i]purine, has been prepared in seven steps from a fully protected 6-chloropurine derivative including a one-step reaction for the preparation of an ethyl 3-beta-D-ribofuranosylpyrazolo[3,2-i]purine derivative from 6-enamino purine and hydrazine. The mechanism for the preparation of 9-ethyl-substituted pyrazolo[3,2-i]purines was elucidated. First, the hydrazino moiety of 6-enamino purine attacks at the C-6 carbon of the purine ring to give a spiro intermediate; this is followed by ring opening and cyclization. The new tricyclic nucleoside exhibited stronger fluorescence than that of 1,N6-ethenoadenosine. Also, the compound and the 9-bromo-substituted pyrazolo[3,2-i]purine nucleoside showed cytotoxic activities against human leukemia CCRF-HSB-2 cells in culture.