(1S,4S,7S)-7-benzyloxy-1-benzyloxymethyl-2,5-dioxabicyclo[2.2.1]heptane | 223591-08-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氧吡喃
• 英文名称: (1S,4S,7S)-7-benzyloxy-1-benzyloxymethyl-2,5-dioxabicyclo[2.2.1]heptane
• CAS: 223591-08-0
• 化学式: C₂₀H₂₂O₄
• 分子量: 326.392
• InChiKey: MRDQQXIXVMJFSL-UFYCRDLUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.96
• 重原子数：
  24.0
• 可旋转键数：
  7.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  36.92
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  (1S,4S,7S)-7-benzyloxy-1-benzyloxymethyl-2,5-dioxabicyclo[2.2.1]heptane 在 palladium on activated charcoal 氢气 作用下， 以80%的产率得到(1S,4S,7S)-7-hydroxy-1-hydroxymethyl-2,5-dioxabicyclo[2.2.1]heptane
  参考文献：
  名称：

  Kvaerno, Lisbet; Wengel, Jesper, Chemical Communications, 1999, # 7, p. 657 - 658

  摘要：

  DOI：
• 作为产物：
  描述：

  (2S,3S,4S)-3-benzyloxy-4-benzyloxymethyl-2-(p-toluenesulfonyl)oxymethyl-4-hydroxytetrahydrofuran 在 sodium hydride 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 1.5h， 以82%的产率得到(1S,4S,7S)-7-benzyloxy-1-benzyloxymethyl-2,5-dioxabicyclo[2.2.1]heptane
  参考文献：
  名称：

  Synthesis of Abasic Locked Nucleic Acid and Two seco-LNA Derivatives and Evaluation of Their Hybridization Properties Compared with Their More Flexible DNA Counterparts

  摘要：

  To investigate the structural basis of the unique hybridization properties of LNA (locked nucleic acid) three novel LNA derivatives with modified carbohydrate parts were synthesized and evaluated with respect to duplex stabilities. The abasic LNA monomer (X(L), Figure 1) with the rigid carbohydrate moiety of LNA but no nucleobase attached showed no enhanced duplex stabilities compared to its more flexible abasic DNA counterpart (X, Figure 1). These results suggest that the exceptional hybridization properties of LNA primarily originate from improved intrastrand nucleobase stacking and not backbone preorganization. Two monocyclic seco-LNA derivatives, obtained by cleavage of the C1'-O4' bond of an LNA monomer or complete removal of the O4'-furanose oxygen atom (Z(L) and dZ(L), respectively, Figure 1), were compared to their acyclic DNA counterpart (Z, Figure 1). Even though they are more constrained than Z, the seco-LNA derivatives Z(L) and dZ(L) destabilize duplex formation even more than the flexible seco-DNA monomer Z.

  DOI：

  10.1021/jo000275x

文献信息

• Triplex-forming enhancement with high sequence selectivity by single 2′-O,4′-C-methylene bridged nucleic acid (2′,4′-BNA) modification
  作者：Satoshi Obika、Yoshiyuki Hari、Tomomi Sugimoto、Mitsuaki Sekiguchi、Takeshi Imanishi

  DOI：10.1016/s0040-4039(00)01607-5

  日期：2000.11

  Tripler-forming ability of the oligonucleotides containing one 2'-O,3'-C-methyleneribonucleic acid (2',4'-BNA) unit was investigated by measurement of the melting temperature (T-m), and the 2',4'-BNA modification promoted the marked tripler stabilization in a highly sequence-selective manner. (C) 2000 Elsevier Science Ltd. All rights reserved.