5'-O-(4,4'-dimethoxytrityl)-P-(2-cyanoethyl)-T(6-4)C 3'-levulinate | 215117-08-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 三苯基化合物
• 英文名称: 5'-O-(4,4'-dimethoxytrityl)-P-(2-cyanoethyl)-T(6-4)C 3'-levulinate
• CAS: 215117-08-1
• 化学式: C₄₈H₅₃N₆O₁₅P
• 分子量: 984.954
• InChiKey: FHAARPCCGFYVSE-ZTJUYVPKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.72
• 重原子数：
  70.0
• 可旋转键数：
  15.0
• 环数：
  9.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  268.39
• 氢给体数：
  2.0
• 氢受体数：
  19.0

反应信息

• 作为反应物：
  描述：

  5'-O-(4,4'-dimethoxytrityl)-P-(2-cyanoethyl)-T(6-4)C 3'-levulinate 在 吡啶 、 一水合肼 、 溶剂黄146 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 0.58h， 生成 5'-O-(4,4'-dimethoxytrityl)-P-(2-cyanoethyl)-T(6-4)C 3'-(2-cyanoethyl)-N,N-diisopropylphosphoramidite
  参考文献：
  名称：

  Studies on the Chemical Synthesis of Oligonucleotides Containing the (6−4) Photoproduct of Thymine−Cytosine and Its Repair by (6−4) Photolyase

  摘要：

  To prepare oligonucleotides containing the pyrimidine(6-4)pyrimidone photoproduct between thymine and cytosine, which is formed more efficiently than any counterpart at other dipyrimidine sites, a dimer building block of this photoproduct was synthesized. Irradiation of thymidylyl(3'-5')deoxycytidine, with protecting groups at the phosphate and the 3'-hydroxyl function, gave a hydrate of cytosine as the main product, and the formation of the (6-4) photoproduct reached a plateau faster than that from the thymidylyl(3'-5')thymidine derivative. After chromatographic purification of the desired (6-4) photoproduct, a phosphoramidite building block was synthesized in three steps. When this compound was used for the usual oligonucleotide assembly on a solid support, it was found that acylation of the amino group of the 5'-pyrimidine component occurred at the capping step. Oligonucleotides were synthesized successfully by omitting the capping steps after coupling of the (6-4) photoproduct unit. These synthetic oligonucleotides were applied to the characterization of the (6-4) photolyase. By HPLC analyses of the photoreactivation product and its nucleoside composition, it was demonstrated that this (6-4) photoproduct was repaired to its original pyrimidine components by this enzyme.

  DOI：

  10.1021/ja982004y
• 作为产物：
  描述：

  2'-脱氧胞嘧啶核苷 在 四氮唑 、 碘 、 N,N'-二环己基碳二亚胺 、 zinc dibromide 、 三氯乙酸 作用下， 以 水 为溶剂， 生成 5'-O-(4,4'-dimethoxytrityl)-P-(2-cyanoethyl)-T(6-4)C 3'-levulinate
  参考文献：
  名称：

  Chemical Synthesis of Oligonucleotides Containing The (6-4) Photoproduct at the Thymine-Cytosine Site and Its Repair By (6-4) Photolyase

  摘要：

  A phosphoramidite building block of the T(6-4)C photoproduct was synthesized. One of the differences from T(6-4)T was formation of cytosine hydrates by UV irradiation, and the other was acylation of the amino function with the capping reagent. The capping step was omitted to improve the yield of the desired oligonucleotides. Characterization of the (6-4) photolyase using one of the oligonucleotides revealed that this enzyme restores the pyrimidines in T(6-4)C to their original structures.

  DOI：

  10.1080/07328319908044706