p-cyanophenylimidazolocytidine-2’,3’,5’-O-tribenzoate

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: p-cyanophenylimidazolocytidine-2’,3’,5’-O-tribenzoate
• 英文别名: [(2R,3R,4R,5R)-3,4-dibenzoyloxy-5-[8-(4-cyanophenyl)-2-oxo-7H-purin-1-yl]oxolan-2-yl]methyl benzoate
• 化学式: C₃₈H₂₇N₅O₈
• 分子量: 681.661
• InChiKey: AZCYQNYHGNPWKP-AOJVRKHOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5
• 重原子数：
  51
• 可旋转键数：
  12
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  169
• 氢给体数：
  1
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  p-cyanophenylimidazolocytidine-2’,3’,5’-O-tribenzoate 在 sodium hydroxide 作用下， 以 甲醇 为溶剂， 反应 1.0h， 以80%的产率得到p-cyanophenylimidazolocytidine
  参考文献：
  名称：

  Phenyl-imidazolo-cytidine Analogues: Structure–Photophysical Activity Relationship and Ability To Detect Single DNA Mismatch

  摘要：

  To expand the arsenal of fluorescent cytidine analogues for the detection of genetic material, we synthesized para-substituted phenyl-imidazolo-cytidine ((Ph)ImC) analogues 5a-g and established a relationship between their structure and fluorescence properties. These analogues were more emissive than cytidine (λem 398-420 nm, Φ 0.009-0.687), and excellent correlation was found between Φ of 5a-g and σp(-) of the substituent on the phenyl-imidazolo moiety (R(2) = 0.94). Calculations suggested that the dominant tautomer of (Ph)ImC in methanol solution is identical to that of cytidine. DFT calculations of the stable tautomer of selected (Ph)ImC analogues suggested a relationship between the HOMO-LUMO gap and Φ and explained the loss of fluorescence in the nitro analogue. Incorporation of the CF3-(Ph)ImdC analogue into a DNA probe resulted in 6-fold fluorescence quenching of the former. A 17-fold reduction of fluorescence was observed for the G-matched duplex vs ODN(CF3-(Ph)ImdC), while for A-mismatched duplex, only a 2-fold decrease was observed. Furthermore, since the quantum yield of ODN(CF3-(Ph)ImdC):ODN(G) was reduced 17-fold vs that of a single strand, whereas that of ODN(CF3-(Ph)ImdC):ORN(G) was reduced only 3.8-fold, ODN(CF3-(Ph)ImdC) appears to be a DNA-selective probe. We conclude that the ODN(CF3-(Ph)ImdC) probe, exhibiting emission sensitivity upon single nucleotide replacement, may be potentially useful for DNA single nucleotide polymorphism (SNP) typing.

  DOI：

  10.1021/jo5011944
• 作为产物：
  描述：

  2-((benzoyloxy)methyl)-5-(4,5-diamino-2-oxopyrimidin-1(2H)yl)tetrahydrofuran-3,4-diyl dibenzoate 、 4-氰基苯甲醛 在 对甲苯磺酸 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 以41%的产率得到p-cyanophenylimidazolocytidine-2’,3’,5’-O-tribenzoate
  参考文献：
  名称：

  Phenyl-imidazolo-cytidine Analogues: Structure–Photophysical Activity Relationship and Ability To Detect Single DNA Mismatch

  摘要：

  To expand the arsenal of fluorescent cytidine analogues for the detection of genetic material, we synthesized para-substituted phenyl-imidazolo-cytidine ((Ph)ImC) analogues 5a-g and established a relationship between their structure and fluorescence properties. These analogues were more emissive than cytidine (λem 398-420 nm, Φ 0.009-0.687), and excellent correlation was found between Φ of 5a-g and σp(-) of the substituent on the phenyl-imidazolo moiety (R(2) = 0.94). Calculations suggested that the dominant tautomer of (Ph)ImC in methanol solution is identical to that of cytidine. DFT calculations of the stable tautomer of selected (Ph)ImC analogues suggested a relationship between the HOMO-LUMO gap and Φ and explained the loss of fluorescence in the nitro analogue. Incorporation of the CF3-(Ph)ImdC analogue into a DNA probe resulted in 6-fold fluorescence quenching of the former. A 17-fold reduction of fluorescence was observed for the G-matched duplex vs ODN(CF3-(Ph)ImdC), while for A-mismatched duplex, only a 2-fold decrease was observed. Furthermore, since the quantum yield of ODN(CF3-(Ph)ImdC):ODN(G) was reduced 17-fold vs that of a single strand, whereas that of ODN(CF3-(Ph)ImdC):ORN(G) was reduced only 3.8-fold, ODN(CF3-(Ph)ImdC) appears to be a DNA-selective probe. We conclude that the ODN(CF3-(Ph)ImdC) probe, exhibiting emission sensitivity upon single nucleotide replacement, may be potentially useful for DNA single nucleotide polymorphism (SNP) typing.

  DOI：

  10.1021/jo5011944