3-[[(2R,3R,4R,5R)-2-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[1-(4-chlorophenyl)-4-ethoxypiperidin-4-yl]oxy-5-(2,4-dioxopyrimidin-1-yl)oxolan-3-yl]oxy-[di(propan-2-yl)amino]phosphanyl]oxypropanenitrile | 908141-04-8

• 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: 3-[[(2R,3R,4R,5R)-2-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[1-(4-chlorophenyl)-4-ethoxypiperidin-4-yl]oxy-5-(2,4-dioxopyrimidin-1-yl)oxolan-3-yl]oxy-[di(propan-2-yl)amino]phosphanyl]oxypropanenitrile
• CAS: 908141-04-8
• 化学式: C₅₂H₆₃ClN₅O₁₀P
• 分子量: 984.526
• InChiKey: CHEXUGFCLNBZOI-KPUARNSWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8
• 重原子数：
  69
• 可旋转键数：
  22
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  154
• 氢给体数：
  1
• 氢受体数：
  13

反应信息

• 作为产物：
  描述：

  3',5'-O-(1,1,3,3-四异丙基-1,3-二硅氧烷)尿苷 在 吡啶 、 二氯乙酸 、 四乙基氟化铵水合物 作用下， 以 四氢呋喃 、 二氯甲烷 、 乙腈 为溶剂， 生成 3-[[(2R,3R,4R,5R)-2-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[1-(4-chlorophenyl)-4-ethoxypiperidin-4-yl]oxy-5-(2,4-dioxopyrimidin-1-yl)oxolan-3-yl]oxy-[di(propan-2-yl)amino]phosphanyl]oxypropanenitrile
  参考文献：
  名称：

  LARGE-SCALE SYNTHESIS OF “Cpep” RNA MONOMERS AND THEIR APPLICATION IN AUTOMATED RNA SYNTHESIS

  摘要：

  Small interfering RNAs (siRNA) are the latest candidates for oligonucleotide-based therapeutics. Should siRNA be successful in clinical trials, a huge demand for synthetic RNA is anticipated. We believe that 1-(4-chlorophenyl)-4-ethoxypiperidin-4-yl(Cpep) is an ideal 2'-protecting group for large-scale syntheses. Unlike 2'-silyl groups, mild acid hydrolysis instead of fluoride ion is used for the 2'-deprotection. The syntheses of 2'-Cpep protected nucleosides (A, Q G, and U) has been accomplished on a 0.5 Kg scale. The 2'-Cpep monomers were transformed into 3'-O-phosphoramidites for conventional automated solid-phase synthesis. Cost-effective processes for large-scale synthesis of Cpep monomers and initial automated solid-phase synthesis are demonstrated.

  DOI：

  10.1081/ncn-200060150

文献信息

• LARGE-SCALE SYNTHESIS OF “Cpep” RNA MONOMERS AND THEIR APPLICATION IN AUTOMATED RNA SYNTHESIS
  作者：R. T. Pon、S. Yu、T. Prabhavalkar、T. Mishra、B. Kulkarni、Y. S. Sanghvi

  DOI：10.1081/ncn-200060150

  日期：2005.4.1

  Small interfering RNAs (siRNA) are the latest candidates for oligonucleotide-based therapeutics. Should siRNA be successful in clinical trials, a huge demand for synthetic RNA is anticipated. We believe that 1-(4-chlorophenyl)-4-ethoxypiperidin-4-yl(Cpep) is an ideal 2'-protecting group for large-scale syntheses. Unlike 2'-silyl groups, mild acid hydrolysis instead of fluoride ion is used for the 2'-deprotection. The syntheses of 2'-Cpep protected nucleosides (A, Q G, and U) has been accomplished on a 0.5 Kg scale. The 2'-Cpep monomers were transformed into 3'-O-phosphoramidites for conventional automated solid-phase synthesis. Cost-effective processes for large-scale synthesis of Cpep monomers and initial automated solid-phase synthesis are demonstrated.