2'-O-TBDMS-3'-deoxy-3'-[(ethoxycarbonyl)methyl]-5'-O-methanesulfonylUrd | 251297-04-8

• 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: 2'-O-TBDMS-3'-deoxy-3'-[(ethoxycarbonyl)methyl]-5'-O-methanesulfonylUrd
• CAS: 251297-04-8
• 化学式: C₂₀H₃₄N₂O₉SSi
• 分子量: 506.649
• InChiKey: HRTIIBBEYKZYDK-DTTOXWODSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.37
• 重原子数：
  33.0
• 可旋转键数：
  9.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  142.99
• 氢给体数：
  1.0
• 氢受体数：
  10.0

反应信息

• 作为反应物：
  描述：

  2'-O-TBDMS-3'-deoxy-3'-[(ethoxycarbonyl)methyl]-5'-O-methanesulfonylUrd 在 sodium hydroxide 、 叠氮化锂 作用下， 以 甲醇 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 8.5h， 生成 5'-azido-2'-O-(tert-butyldimethylsilyl)-3'-(carboxymethyl)-3',5'-dideoxyuridine
  参考文献：
  名称：

  Amide-Linked Ribonucleoside Dimers Derived from 5‘-Amino-5‘-deoxy- and 3‘-(Carboxymethyl)-3‘-deoxynucleoside Precursors¹

  摘要：

  Treatment of tert-butyldimethylsilyl (TBDMS) derivatives of 3'-keto(adenosine or uridine) with [(ethoxycarbonyl)methylene]triphenylphosphorane gave exocyclic alkenes that underwent stereoselective hydrogenation to give 3'-deoxy-3'-[(ethoxycarbonyl)methyl](Ado or Urd) analogues. Saponification provided the 3'-(carboxymethyl)-3'-deoxy(Ado and Urd) derivatives 37 and 38. Treatment of 37 or 38 with DCC and 5'-amino-2',3'-bis-O-TBDMS-5'-deoxynucleosides gave the amide-linked dimers (74-82%). Activation of 37 or 38 with 4-nitrophenol/DCC, and direct coupling of the 4-nitrophenyl esters with 5'-amino-5'-deoxy(Ado or Urd) in pyridine also produced amide dimers efficiently (65-70%). Analogous activation of a 5'-O-DMT-protected carboxylate, and its coupling with 5'-amino-5'-deoxy-2'-O-methyladenosine gave the amide dimer in good yield (74%). Coupling (DCC) of a 5'-azido-2'-O-TBDMS-3'-(carboxymethyl)-3', 5'-dideoxyuridine intermediate with 5'-amino-5'-deoxynucleosides gave amide-linked dimers (72-78%) that can serve as masked (azide reduction) 5'-amino dimers for analogous synthesis of extended amide-linked oligomers.

  DOI：

  10.1021/jo9908647
• 作为产物：
  描述：

  2',5'-bis-O-tert-butyldimethylsilyl-3'-ketouridine 在 palladium on activated charcoal 吡啶 、 水 、 氢气 、 三氟乙酸 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 20.0 ℃ 、34.47 kPa 条件下， 反应 67.0h， 生成 2'-O-TBDMS-3'-deoxy-3'-[(ethoxycarbonyl)methyl]-5'-O-methanesulfonylUrd
  参考文献：
  名称：

  Amide-Linked Ribonucleoside Dimers Derived from 5‘-Amino-5‘-deoxy- and 3‘-(Carboxymethyl)-3‘-deoxynucleoside Precursors¹

  摘要：

  Treatment of tert-butyldimethylsilyl (TBDMS) derivatives of 3'-keto(adenosine or uridine) with [(ethoxycarbonyl)methylene]triphenylphosphorane gave exocyclic alkenes that underwent stereoselective hydrogenation to give 3'-deoxy-3'-[(ethoxycarbonyl)methyl](Ado or Urd) analogues. Saponification provided the 3'-(carboxymethyl)-3'-deoxy(Ado and Urd) derivatives 37 and 38. Treatment of 37 or 38 with DCC and 5'-amino-2',3'-bis-O-TBDMS-5'-deoxynucleosides gave the amide-linked dimers (74-82%). Activation of 37 or 38 with 4-nitrophenol/DCC, and direct coupling of the 4-nitrophenyl esters with 5'-amino-5'-deoxy(Ado or Urd) in pyridine also produced amide dimers efficiently (65-70%). Analogous activation of a 5'-O-DMT-protected carboxylate, and its coupling with 5'-amino-5'-deoxy-2'-O-methyladenosine gave the amide dimer in good yield (74%). Coupling (DCC) of a 5'-azido-2'-O-TBDMS-3'-(carboxymethyl)-3', 5'-dideoxyuridine intermediate with 5'-amino-5'-deoxynucleosides gave amide-linked dimers (72-78%) that can serve as masked (azide reduction) 5'-amino dimers for analogous synthesis of extended amide-linked oligomers.

  DOI：

  10.1021/jo9908647