2'-deoxy-2'-C-allyl-4'-C-hydroxymethyl-3'-O-(tert-butyldimethylsilyl)uridine | 913972-62-0

• 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: 2'-deoxy-2'-C-allyl-4'-C-hydroxymethyl-3'-O-(tert-butyldimethylsilyl)uridine
• 英文别名: 1-[(2R,3R,4S)-4-[tert-butyl(dimethyl)silyl]oxy-5,5-bis(hydroxymethyl)-3-prop-2-enyloxolan-2-yl]pyrimidine-2,4-dione
• CAS: 913972-62-0
• 化学式: C₁₉H₃₂N₂O₆Si
• 分子量: 412.558
• InChiKey: USGKYQOZCXBPDA-VNQPRFMTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.37
• 重原子数：
  28
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.68
• 拓扑面积：
  108
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2'-deoxy-2'-C-allyl-4'-C-hydroxymethyl-3'-O-(tert-butyldimethylsilyl)uridine 在 rhodium(III) chloride trihydrate 、 potassium carbonate 作用下， 以 乙醇 为溶剂， 反应 168.0h， 以55%的产率得到3'-O-(tert-butyldimethylsilyl)-2'-deoxy-4'-C-hydroxymethyl-2'-(prop-1-en-1-yl)uridine
  参考文献：
  名称：

  双环双头核苷的合成

  摘要：

  使用不同的RCM方法制备碳环LNA模拟的尝试失败。然而，分离出在C2'和C4'-位置之间具有半缩醛连接基的化合物，发现该化合物是制备构象受限的双头核苷的合适底物。它包含组织在双环骨架上的两个尿嘧啶核碱基，并锁定在N型构象中。

  DOI：

  10.1016/j.tet.2013.12.013
• 作为产物：
  描述：

  在 sodium hydroxide 、 sodium tetrahydroborate 作用下， 以 1,4-二氧六环 、 水 为溶剂， 反应 22.0h， 生成 2'-deoxy-2'-C-allyl-4'-C-hydroxymethyl-3'-O-(tert-butyldimethylsilyl)uridine
  参考文献：
  名称：

  Analogues of a Locked Nucleic Acid with Three-Carbon 2‘,4‘-Linkages:  Synthesis by Ring-Closing Metathesis and Influence on Nucleic Acid Duplex Stability and Structure

  摘要：

  Two bicyclic 2'-deoxynucleoside analogues containing a saturated and an unsaturated three-carbon 2', 4'-linkage, respectively, have been synthesized using a ring-closing metathesis-based linear strategy starting from uridine. Both analogues have been incorporated into oligodeoxynucleotide sequences and increased the stability of DNA:RNA hybrid duplexes (Delta T-m similar to 2.5-5.0 degrees C per modification) and decreased the stability of dsDNA duplexes (Delta T-m similar to 2.5-1.0 degrees C per modification). CD spectroscopy revealed that the bicyclic nucleosides induced formation of A-type-like duplexes albeit to a lesser degree than found for locked nucleic acid (LNA) monomers. From the CD data and UV melting analysis, we propose that the 2'-oxygen atom of the bicyclic moiety is essential for the formation of stabilized A-type-like dsDNA but not for the formation of a stabilized A-type DNA:RNA hybrid.

  DOI：

  10.1021/jo061225g

文献信息

• Two Carbocyclic Locked Nucleic Acid Analogues Give Structural Information about the Role of Hydration in A-Type Duplexes
  作者：Nanna Albæk、Michael Petersen、Poul Nielsen

  DOI：10.1080/15257770701544377

  日期：2007.11.26

  Two locked nucleic acid (LNA) analogues with three-carbon 24 linkages, saturated or unsaturated, are synthesized using a ring-closing metathesis based strategy. Strongly stabilized duplexes with complementary RNA and slightly destabilized duplexes with complementary DNA are observed. CD-spectroscopy indicates a less pronounced shift toward A-type duplexes compared to LNA. These results combining a strong N-type conformation with the absence of a 2'-oxygen demonstrate a stronger importance of minor groove hydration in an intermediate duplex type than in an A-type duplex.