5'-O-[2-(4-nitrophenyl)ethoxycarbonyl]thymidine | 112141-36-3

• 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-(4-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-(4-nitrophenyl)ethyl carbonate
• CAS: 112141-36-3
• 化学式: C₁₉H₂₁N₃O₉
• 分子量: 435.39
• InChiKey: YPYURKVGTYJKRV-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-(4-nitrophenyl)ethoxycarbonyl]thymidine 在 吡啶 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 二氯甲烷 、 乙腈 为溶剂， 反应 4.0h， 生成 3’-O-(4,4’-二甲氧基三苯甲基)胸苷
  参考文献：
  名称：

  核苷酸，第 LXV 部分，2'-脱氧核糖核苷 5'-亚磷酰胺的合成：反向 (5'-3')-寡核苷酸方法的新构件

  摘要：

  The syntheses of the 3'-O-(4,4'-dimethoxytrityl)-protected 5'-phosphoramidites 25-28 and 5'-(hydrogen succinates) 29-32, which can be used as monomeric building blocks for the inverse (5'-3')-oligodeoxyribonucleotide synthesis are described (Scheme). These activated nucleosides and nucleotides were obtained by two slightly different four-step syntheses starting with the base-protected nucleosides 13-20. For the protection of the aglycon residues, the well-established 2-(4-nitrophenyl)ethyl (npe) and [2-(4-nitrophenyl)ethoxy]carbonyl (npeoc) groups were used. The assembly of the oligonucleotides required a slightly increased coupling time of 3 min in application of the common protocol (see Table 1). The use of pyridinium hydrochloride as an activator (instead of 1H-tetrazole) resulted in an extremely shorter activation time of 30 seconds. We established the efficiency of this inverse strategy by the synthesis of the oligonucleotide 3'-conjugates 33 and 34 which carry lipophilic caps derived from cholesterol and vitamin E, respectively, as well as by the formation of (3'-3')- and (5'-5')-internucleotide linkages (see Table 2).

  DOI：

  10.1002/1522-2675(20000809)83:8<2023::aid-hlca2023>3.0.co;2-p
• 作为产物：
  描述：

  2-(4-nitrophenyl)ethoxycarbonyl chloride 、 beta-胸苷 在 吡啶 作用下， 以86%的产率得到5'-O-[2-(4-nitrophenyl)ethoxycarbonyl]thymidine
  参考文献：
  名称：

  核苷酸，第 LXV 部分，2'-脱氧核糖核苷 5'-亚磷酰胺的合成：反向 (5'-3')-寡核苷酸方法的新构件

  摘要：

  The syntheses of the 3'-O-(4,4'-dimethoxytrityl)-protected 5'-phosphoramidites 25-28 and 5'-(hydrogen succinates) 29-32, which can be used as monomeric building blocks for the inverse (5'-3')-oligodeoxyribonucleotide synthesis are described (Scheme). These activated nucleosides and nucleotides were obtained by two slightly different four-step syntheses starting with the base-protected nucleosides 13-20. For the protection of the aglycon residues, the well-established 2-(4-nitrophenyl)ethyl (npe) and [2-(4-nitrophenyl)ethoxy]carbonyl (npeoc) groups were used. The assembly of the oligonucleotides required a slightly increased coupling time of 3 min in application of the common protocol (see Table 1). The use of pyridinium hydrochloride as an activator (instead of 1H-tetrazole) resulted in an extremely shorter activation time of 30 seconds. We established the efficiency of this inverse strategy by the synthesis of the oligonucleotide 3'-conjugates 33 and 34 which carry lipophilic caps derived from cholesterol and vitamin E, respectively, as well as by the formation of (3'-3')- and (5'-5')-internucleotide linkages (see Table 2).

  DOI：

  10.1002/1522-2675(20000809)83:8<2023::aid-hlca2023>3.0.co;2-p

文献信息

• Nucleosides. Part LI The 2-(4-nitrophenyl)ethoxycarbonyl (npeoc) and 2-(2,4-dinitrophenyl)ethoxycarbonyl (dnpeoc) groups for protection of hydroxy functions in ribonucleosides and 2? -deoxyribonucleosides
  作者：Helga Schirmesiter、Frank Himmelsbach、Wolfgang Pfleiderer

  DOI：10.1002/hlca.19930760122

  日期：1993.2.10

  yl)(ethoxycarbonyl]-O6-[2–4-nitrophenyl)ethyl]-guanosine (52) were further protected by the 2-(4-nitrophenyl)ethoxycarbonyl (npeoc) and the 2-(2,4-dinitrophenyl)ethoxycarbonyl (dnpeoc) group at the OH functions of the sugar moiety to form new partially and fully blocked intermediates for nucleoside and nucleotide syntheses. The corresponding 5′-O-monomethoxytrityl derivatives 5, 18, 30, 40, and 56

  常见的2'-脱氧嘧啶和-嘌呤核苷，胸腺嘧啶核苷（4），O 4- [2-（4-硝基苯基）乙基]-胸苷（17），2'-脱氧-N 4- [2-（4-硝基苯基） ）乙氧基羰基]胞嘧啶核苷（26），2'-脱氧-N 6- [2-（4-硝基苯基）-乙氧基羰基]腺苷-39和2'-脱氧-N 2- [2-（4-硝基苯基）（乙氧基羰基） ] -O 6- [2-4硝基苯基）乙基]-鸟苷（52）在糖部分的OH功能上进一步受到2-（4-硝基苯基）乙氧羰基（npeoc）和2-（2,4-二硝基苯基）乙氧羰基（dnpeoc）基团的保护，形成了新的部分和完全封闭的中间体核苷和核苷酸合成。相应的5'-O-单甲氧衍生物5，18，30，40，和56也被用来作为起始原料来合成，其没有被直接酰化得到一些其他的中间体。在核糖核苷系列中，5' - ö -monomethoxytrityl衍生物14，36，49，和63与2-（4-硝基苯基）
• An Inverse Approach in Oligodeoxyribonucleotide Synthesis
  作者：Thomas Wagner、Wolfgang Pfleiderer

  DOI：10.1080/07328319708006249

  日期：1997.7

  We synthesized 3'-O-dimethoxytrityl-5'O-phosphoramidites and 5'-O-succinates which can be used as monomeric building blocks for the built up of oligodeoxyribonucleotides in the alternative 5'-3' direction. With this inverse strategy oligonucleotide 3'-conjugates as well as 3'-3' and 5'-5' internucleotidic linkages can be easily formed.
• SCHIRMEISTER, H.;PFLEIDERER, W., NUCLEOSIDES AND NUCLEOTIDES, 6,(1987) N 1-2, 501-503
  作者：SCHIRMEISTER, H.、PFLEIDERER, W.

  DOI：——

  日期：——