5'-azido-2'-O-(tert-butyldimethylsilyl)-3',5'-dideoxy-3'-[(ethoxycarbonyl)methyl]uridine | 251296-77-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 5'-azido-2'-O-(tert-butyldimethylsilyl)-3',5'-dideoxy-3'-[(ethoxycarbonyl)methyl]uridine
• 英文别名: ethyl 2-[(2S,3R,4R,5R)-2-(azidomethyl)-4-[tert-butyl(dimethyl)silyl]oxy-5-(2,4-dioxopyrimidin-1-yl)oxolan-3-yl]acetate
• CAS: 251296-77-2
• 化学式: C₁₉H₃₁N₅O₆Si
• 分子量: 453.571
• InChiKey: KVVQCOZTOWOBGB-BQGCOEIASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  31
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.74
• 拓扑面积：
  109
• 氢给体数：
  1
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  5'-azido-2'-O-(tert-butyldimethylsilyl)-3',5'-dideoxy-3'-[(ethoxycarbonyl)methyl]uridine 在 palladium on activated charcoal sodium hydroxide 、 氢气 、 N,N'-二环己基碳二亚胺 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 水 为溶剂， 20.0 ℃ 、34.47 kPa 条件下， 反应 11.0h， 生成 5'-amino-2'-O-(tert-butyldimethylsilyl)-3'-[[N-(2',3'-bis-O-(tert-butyldimethylsilyl)-5'-deoxyuridin-5'-yl)carbamoyl]methyl]-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：

  1-[2,5-bis-O-(tert-butyldimethylsilyl)-3-deoxy-3-(ethoxycarbonyl)methylene-β-D-ribofuranosyl]uracil 在 palladium on activated charcoal sodium azide 、 水 、 氢气 、 碘 、 三苯基膦 、 三氟乙酸 作用下， 以 吡啶 、 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 65.0 ℃ 、34.47 kPa 条件下， 反应 84.0h， 生成 5'-azido-2'-O-(tert-butyldimethylsilyl)-3',5'-dideoxy-3'-[(ethoxycarbonyl)methyl]uridine
  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