Carbonic acid 2,2-bis-(2-nitro-phenyl)-ethyl ester (2R,3S,5R)-3-hydroxy-5-(4-hydroxy-5-methyl-2-oxo-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethyl ester | 189216-64-6

• 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: Carbonic acid 2,2-bis-(2-nitro-phenyl)-ethyl ester (2R,3S,5R)-3-hydroxy-5-(4-hydroxy-5-methyl-2-oxo-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethyl ester
• 英文别名: 2,2-bis(2-nitrophenyl)ethyl [(2R,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl carbonate
• CAS: 189216-64-6
• 化学式: C₂₅H₂₄N₄O₁₁
• 分子量: 556.486
• InChiKey: SXFKXPAPWSRWRE-BHDDXSALSA-N

物化性质

• 密度：
  1.476±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  40
• 可旋转键数：
  9
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  206
• 氢给体数：
  2
• 氢受体数：
  11

反应信息

• 作为反应物：
  描述：

  乙酸酐 、 Carbonic acid 2,2-bis-(2-nitro-phenyl)-ethyl ester (2R,3S,5R)-3-hydroxy-5-(4-hydroxy-5-methyl-2-oxo-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethyl ester 在 吡啶 作用下， 反应 48.0h， 生成
  参考文献：
  名称：

  Photolabile protecting groups for nucleosides: Synthesis and photodeprotection rates

  摘要：

  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.

  DOI：

  10.1016/s0040-4020(97)00154-3
• 作为产物：
  描述：

  1-硝基-2-[(2-硝基苯基)甲基]苯 在 吡啶 、 苄基三甲基氢氧化铵 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 二甲基亚砜 、 甲苯 为溶剂， 反应 22.0h， 生成 Carbonic acid 2,2-bis-(2-nitro-phenyl)-ethyl ester (2R,3S,5R)-3-hydroxy-5-(4-hydroxy-5-methyl-2-oxo-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethyl ester
  参考文献：
  名称：

  Photolabile protecting groups for nucleosides: Synthesis and photodeprotection rates

  摘要：

  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.

  DOI：

  10.1016/s0040-4020(97)00154-3

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.