5'-O-(2-(2-nitrophenyl)ethoxycarbonyl)thymidine | 179691-36-2

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘧啶核苷
• 英文名称: 5'-O-(2-(2-nitrophenyl)ethoxycarbonyl)thymidine
• 英文别名: [(2R,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl 2-(2-nitrophenyl)ethyl carbonate
• CAS: 179691-36-2
• 化学式: C₁₉H₂₁N₃O₉
• 分子量: 435.39
• InChiKey: CWHAQGLOROYQOX-ARFHVFGLSA-N

物化性质

• 密度：
  1.445±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  31
• 可旋转键数：
  8
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  160
• 氢给体数：
  2
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  5'-O-(2-(2-nitrophenyl)ethoxycarbonyl)thymidine 以 甲醇 、 水 为溶剂， 反应 1.0h， 以80%的产率得到beta-胸苷
  参考文献：
  名称：

  New Photolabile Protecting Groups of the 2-(2-Nitrophenyl)ethoxycarbonyl- and the 2-(2-Nitrophenyl)ethylsulfonyl-Type for the Oligonucleotide Synthesis

  摘要：

  DOI：

  10.1080/07328319908044692
• 作为产物：
  描述：

  2-(2-硝基苯基)乙醇 生成 5'-O-(2-(2-nitrophenyl)ethoxycarbonyl)thymidine
  参考文献：
  名称：

  New Photolabile Protecting Groups in Nucleoside and Nucleotide Chemistry—Synthesis, Cleavage Mechanisms and Applications

  摘要：

  New photolabile protecting groups have been found in the 2-(2-nitrophenyl)ethoxycarbonyl and the 2-(2-nitrophenyl)ethylsulfonyl group, respectively. The influence of substituents at the phenyl ring as well as the side-chain has been investigated regarding the photolysis rates on irradiation at 365 mn. beta-Branching in the side-chain leads to highly increased rates of photodeprotection. A new type of photocleavage mechanism consisting of a photoinduced beta-elimination process is proposed.

  DOI：

  10.1080/07328319808004738

文献信息

• Photolabile protecting groups for nucleosides: Synthesis and photodeprotection rates
  作者：Ahmad Hasan、Klaus-Peter Stengele、Heiner Giegrich、Paul Cornwell、Kenneth R. Isham、Richard A. Sachleben、Wolfgang Pfleiderer、Robert S. Foote

  DOI：10.1016/s0040-4020(97)00154-3

  日期：1997.3

  o-Nitrobenzyloxycarbonyl and a number of related groups have been tested for the photolabile protection of nucleoside 5'-hydroxyls. The rates of photodeprotection were found to vary by approximately 17 fold in a series of 5'-O-protected thymidine derivatives irradiated at 365 nm under identical conditions. The homologous 2-(o-nitrophenyl)ethoxycarbonyl group and its derivatives were found to be removed approximately 2-fold faster than the corresponding o-nitrobenzyloxycarbonyl group, possibly due to an increased rare of alpha-hydrogen abstraction by the photo-excited nitro group. Photolysis rates were affected by substitutions on both the phenyl ring and alpha-carbon, with the strongest rate enhancements caused by the presence of a methyl or second o-nitrophenyl group in the alpha-position. Among the ring-substituted derivatives studied, o-nitro and o-iodo had the strongest enhancement effects on photodeprotection, while an o-fluoro group reduced the rate of photodeprotection. In general, substitutions at other positions on the phenyl ring had less effect on photolysis rates. (C) 1997 Elsevier Science Ltd.
• New Photolabile Protecting Groups in Nucleoside and Nucleotide Chemistry—Synthesis, Cleavage Mechanisms and Applications
  作者：H. Giegrich、S. Eisele-Bühler、Chr Hermann、E. Kvasyuk、R. Charubala、W. Pfleiderer

  DOI：10.1080/07328319808004738

  日期：1998.9

  New photolabile protecting groups have been found in the 2-(2-nitrophenyl)ethoxycarbonyl and the 2-(2-nitrophenyl)ethylsulfonyl group, respectively. The influence of substituents at the phenyl ring as well as the side-chain has been investigated regarding the photolysis rates on irradiation at 365 mn. beta-Branching in the side-chain leads to highly increased rates of photodeprotection. A new type of photocleavage mechanism consisting of a photoinduced beta-elimination process is proposed.
• NUCLEOSID-DERIVATE MIT PHOTOLABILEN SCHUTZGRUPPEN
  申请人：Pfleiderer, Wolfgang

  公开号：EP0797580B1

  公开（公告）日：2002-04-10
• US5763599A
  申请人：——

  公开号：US5763599A

  公开（公告）日：1998-06-09
• New Photolabile Protecting Groups of the 2-(2-Nitrophenyl)ethoxycarbonyl- and the 2-(2-Nitrophenyl)ethylsulfonyl-Type for the Oligonucleotide Synthesis
  作者：S. Bühler、H. Giegrich、W. Pfleiderer

  DOI：10.1080/07328319908044692

  日期：1999.6