[(2S,3R,4R,5R)-5-(6-Amino-purin-9-yl)-4-(tert-butyl-dimethyl-silanyloxy)-2-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-3-yl]-acetic acid ethyl ester | 152965-21-4

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘌呤核苷
• 英文名称: [(2S,3R,4R,5R)-5-(6-Amino-purin-9-yl)-4-(tert-butyl-dimethyl-silanyloxy)-2-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-3-yl]-acetic acid ethyl ester
• 英文别名: ethyl 2-[(2S,3R,4R,5R)-5-(6-aminopurin-9-yl)-4-[tert-butyl(dimethyl)silyl]oxy-2-[[tert-butyl(dimethyl)silyl]oxymethyl]oxolan-3-yl]acetate
• CAS: 152965-21-4
• 化学式: C₂₆H₄₇N₅O₅Si₂
• 分子量: 565.861
• InChiKey: PHSOYSUPGYZQKC-ZUXGEGRZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.29
• 重原子数：
  38
• 可旋转键数：
  12
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.77
• 拓扑面积：
  124
• 氢给体数：
  1
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  [(2S,3R,4R,5R)-5-(6-Amino-purin-9-yl)-4-(tert-butyl-dimethyl-silanyloxy)-2-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-3-yl]-acetic acid ethyl ester 在 sodium hydroxide 、 1-羟基苯并三唑 、 N,N'-二环己基碳二亚胺 作用下， 以 甲醇 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 39.0h， 生成 2',5'-bis-O-(tert-butyldimethylsilyl)-3'-deoxy-3'-[[(4-nitrophenoxy)carbonyl]methyl]adenosine
  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：

  [(2S,4R,5R)-5-(6-Amino-purin-9-yl)-4-(tert-butyl-dimethyl-silanyloxy)-2-(tert-butyl-dimethyl-silanyloxymethyl)-dihydro-furan-(3Z)-ylidene]-acetic acid ethyl ester 在 palladium on activated charcoal 氢气 作用下， 以 甲醇 为溶剂， 反应 72.0h， 生成 [(2S,3R,4R,5R)-5-(6-Amino-purin-9-yl)-4-(tert-butyl-dimethyl-silanyloxy)-2-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-3-yl]-acetic acid ethyl ester
  参考文献：
  名称：

  Synthesis of nucleoside 3'-alkylphosphonates: intermediates for assembly of carbon-bridge dinucleotide analogs

  摘要：

  Several 3'-modified nucleosides have been prepared, through an initial Wittig or Horner-Wadsworth-Emmons condensation with an adenosine 3'-ketone, followed by catalytic hydrogenation of the resulting olefin. Subsequent reaction of the 3'alpha-methylene carboxylate with the lithium salt of diethyl ethylphosphonate gave a beta-keto phosphonate, while reaction of the methylene carboxylate with LDA, diethyl chlorophosphite, and O2 gives the corresponding alpha-phosphono ester. These new nucleoside phosphonates can be viewed as analogues of natural phosphates and also can serve as synthetic intermediates for preparation of carbon-bridged dinucleotide analogues. To give the first such example, the beta-keto phosphonate 13 was allowed to react with a nucleoside 5-aldehyde, affording the dinucleoside enone 23.

  DOI：

  10.1021/jo00079a027

文献信息

• Synthesis of 2′,3′-fused (3.3.0) γ-butyrolactone-nucleosides and coupling with amino-nucleosides to give amide-linked nucleotide-dimer analogues
  作者：Morris J. Robins、Sanchita Sarker、Meiqiang Xie、Weijian Zhang、Matt A. Peterson

  DOI：10.1016/0040-4039(96)00715-0

  日期：1996.6

  Stereoselective hydrogenation of Wittigg products obtained readily (via the 3′-ketones) from 2′,5′-bis-O-(tert-butyldimethylsilyl)nucleosides provides efficient access to 2′,3′-fused γ-butyrolactone-nucleosides that can be coupled with 5′-amino-nucleosides (2-hydroxypyridine catalysis) to give amide-linked nucleotide-dimer analogues.

  易于（通过3'-酮）从2'，5'-双-O-（叔丁基二甲基甲硅烷基）核苷获得的Wittigg产物的立体选择性加氢提供了2'，3'-融合的γ-丁内酯核苷的有效通道与5'-氨基-核苷（2-羟基吡啶催化）偶联，得到酰胺连接的核苷酸-二聚体类似物。
• Synthesis of nucleoside 3'-alkylphosphonates: intermediates for assembly of carbon-bridge dinucleotide analogs
  作者：Koo Lee、David F. Wiemer

  DOI：10.1021/jo00079a027

  日期：1993.12

  Several 3'-modified nucleosides have been prepared, through an initial Wittig or Horner-Wadsworth-Emmons condensation with an adenosine 3'-ketone, followed by catalytic hydrogenation of the resulting olefin. Subsequent reaction of the 3'alpha-methylene carboxylate with the lithium salt of diethyl ethylphosphonate gave a beta-keto phosphonate, while reaction of the methylene carboxylate with LDA, diethyl chlorophosphite, and O2 gives the corresponding alpha-phosphono ester. These new nucleoside phosphonates can be viewed as analogues of natural phosphates and also can serve as synthetic intermediates for preparation of carbon-bridged dinucleotide analogues. To give the first such example, the beta-keto phosphonate 13 was allowed to react with a nucleoside 5-aldehyde, affording the dinucleoside enone 23.
• Amide-Linked Ribonucleoside Dimers Derived from 5‘-Amino-5‘-deoxy- and 3‘-(Carboxymethyl)-3‘-deoxynucleoside Precursors¹
  作者：Matt A. Peterson、Bradley L. Nilsson、Sanchita Sarker、Bogdan Doboszewski、Weijian Zhang、Morris J. Robins

  DOI：10.1021/jo9908647

  日期：1999.10.1

  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.