1-(2'-O,3'-O-Cyclopentyl-5'-O-benzyl-β-D-erythro-pentofuranosyl)-N³-benzyluracil | 161824-84-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 1-(2'-O,3'-O-Cyclopentyl-5'-O-benzyl-β-D-erythro-pentofuranosyl)-N³-benzyluracil
• 英文别名: 1-[(3aR,4R,6R,6aR)-6-(phenylmethoxymethyl)spiro[3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxole-2,1'-cyclopentane]-4-yl]-3-benzylpyrimidine-2,4-dione
• CAS: 161824-84-6
• 化学式: C₂₈H₃₀N₂O₆
• 分子量: 490.556
• InChiKey: BKPFXIJFXLASGV-VNSJUHMKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  36
• 可旋转键数：
  7
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  77.5
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  1-(2'-O,3'-O-Cyclopentyl-5'-O-benzyl-β-D-erythro-pentofuranosyl)-N³-benzyluracil 在 吡啶 、 三氟乙酸 作用下， 反应 16.33h， 生成 Acetic acid (2R,3R,4R,5R)-4-acetoxy-2-(3-benzyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-5-benzyloxymethyl-tetrahydro-furan-3-yl ester
  参考文献：
  名称：

  A Facile Route to Pyrimidine-Based Nucleoside Olefins: Application to the Synthesis of d4T (Stavudine)

  摘要：

  An efficient synthetic route to nucleoside olefins in the uridine, cytidine, and thymidine series is described which utilizes the Garegg-Samuelsson iodine/triphenylphosphine/imidazole-promoted deoxygenation of the 2',3'-hydroxyl groups as the key step. Cyclopentylidene ketal protection was employed for all the nucleoside 2',3'-hydroxyls to facilitate blocking of the 5'-hydroxyl and the pyrimidine nitrogens with the benzyl or 4-methoxybenzyl (PMB) groups. Deblocking of the cyclopentylidene group followed by olefination of the resulting diols provided protected nucleoside olefins 18-20. Starting with 5-methyluridine 4 and utilizing the 4-methoxybenzyl group for 5',N-3 protection, the overall scheme provided the anti-HIV compound d4T (1) after deprotection of the PMB groups. The dibenzylhypoxanthine nucleoside diol 17 derived from inosine gave either unreacted starting material or decomposition products under several sets of conditions.

  DOI：

  10.1021/jo00103a017
• 作为产物：
  描述：

  1,1-二甲氧基环戊烷 在 sodium hydride 、 对甲苯磺酸 作用下， 以 乙二醇二甲醚 、 N,N-二甲基甲酰胺 为溶剂， 反应 10.42h， 生成 1-(2'-O,3'-O-Cyclopentyl-5'-O-benzyl-β-D-erythro-pentofuranosyl)-N³-benzyluracil
  参考文献：
  名称：

  A Facile Route to Pyrimidine-Based Nucleoside Olefins: Application to the Synthesis of d4T (Stavudine)

  摘要：

  An efficient synthetic route to nucleoside olefins in the uridine, cytidine, and thymidine series is described which utilizes the Garegg-Samuelsson iodine/triphenylphosphine/imidazole-promoted deoxygenation of the 2',3'-hydroxyl groups as the key step. Cyclopentylidene ketal protection was employed for all the nucleoside 2',3'-hydroxyls to facilitate blocking of the 5'-hydroxyl and the pyrimidine nitrogens with the benzyl or 4-methoxybenzyl (PMB) groups. Deblocking of the cyclopentylidene group followed by olefination of the resulting diols provided protected nucleoside olefins 18-20. Starting with 5-methyluridine 4 and utilizing the 4-methoxybenzyl group for 5',N-3 protection, the overall scheme provided the anti-HIV compound d4T (1) after deprotection of the PMB groups. The dibenzylhypoxanthine nucleoside diol 17 derived from inosine gave either unreacted starting material or decomposition products under several sets of conditions.

  DOI：

  10.1021/jo00103a017

文献信息

• A Facile Route to Pyrimidine-Based Nucleoside Olefins: Application to the Synthesis of d4T (Stavudine)
  作者：Frederick A. Luzzio、Michael E. Menes

  DOI：10.1021/jo00103a017

  日期：1994.12

  An efficient synthetic route to nucleoside olefins in the uridine, cytidine, and thymidine series is described which utilizes the Garegg-Samuelsson iodine/triphenylphosphine/imidazole-promoted deoxygenation of the 2',3'-hydroxyl groups as the key step. Cyclopentylidene ketal protection was employed for all the nucleoside 2',3'-hydroxyls to facilitate blocking of the 5'-hydroxyl and the pyrimidine nitrogens with the benzyl or 4-methoxybenzyl (PMB) groups. Deblocking of the cyclopentylidene group followed by olefination of the resulting diols provided protected nucleoside olefins 18-20. Starting with 5-methyluridine 4 and utilizing the 4-methoxybenzyl group for 5',N-3 protection, the overall scheme provided the anti-HIV compound d4T (1) after deprotection of the PMB groups. The dibenzylhypoxanthine nucleoside diol 17 derived from inosine gave either unreacted starting material or decomposition products under several sets of conditions.