2',3',5'-tri-O-acetyl-5-[(benzyloxy)methyl]uridine | 13111-67-6

• 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',3',5'-tri-O-acetyl-5-[(benzyloxy)methyl]uridine
• 英文别名: 5-Benzyloxymethyl-2',3',5'-tri-O-acetyl-uridin；2',3',5'-Tri-O-acetyl-5-benzyloxymethyluridin；O^2'_,O3'_,O5'-triacetyl-5-benzyloxymethyl-uridine；[(2R,3R,4R,5R)-3,4-diacetyloxy-5-[2,4-dioxo-5-(phenylmethoxymethyl)pyrimidin-1-yl]oxolan-2-yl]methyl acetate
• CAS: 13111-67-6
• 化学式: C₂₃H₂₆N₂O₁₀
• 分子量: 490.467
• InChiKey: AIQVRBXLCKVMKI-NXLVEIQXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.58
• 重原子数：
  35.0
• 可旋转键数：
  9.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  152.22
• 氢给体数：
  1.0
• 氢受体数：
  11.0

反应信息

• 作为反应物：
  描述：

  2',3',5'-tri-O-acetyl-5-[(benzyloxy)methyl]uridine 在 sodium hydroxide 作用下， 以 四氢呋喃 、 吡啶 、 甲醇 、 水 为溶剂， 反应 18.58h， 生成 5-[(benzyloxy)methyl]-3',5'-O-(1,1,3,3-tetraisopropyldisiloxane-1,3-diyl)uridine
  参考文献：
  名称：

  Aromaticvs. Carbohydrate Residues in the Major Groove: Synthesis of 5-[(Benzyloxy)methyl]pyrimidine Nucleosides and Their Incorporation into Oligonucleotides

  摘要：

  The synthesis of 5-[(benzyloxy)methyl]-substituted pyrimidine 2'-deoxynucleosides 14 and 15 starting from the uracil derivative 6 and tetra-O-acetyl-D-ribose is described (Schemes 1-3). These nucleosides were converted to the corresponding cyanoethyl phosphoramidites 18 and 19, respectively, and incorporated into oligodeoxynucleotide decamers. The 5-[(benzyloxy)methyl]-nucleoside building blocks T-bo(d) and C-bom(d) (bo = benzyloxy, bom = (benzyloxy)methyl) - shape analogs of the naturally occurring glucosylated nucleosides 1 and 2 (see Fig. 1) - lead to weaker binding affinities of oligodeoxynucleotides pairing to DNA as well as RNA complements. The modification is more destabilizing in the case of T-bo(d) than C-bom(d). Analysis of the thermodynamics of duplex formation shows that T-bo(d) and C-bom(d), incorporation leads to a smaller entropy change in duplex formation that is, however, overcompensated by a less Favorable enthalpy term. Molecular-modeling studies suggest that the benzyl groups reside in the major groove which would explain the improved pairing entropy as a result of the exclusion of ordered H2O.

  DOI：

  10.1002/1522-2675(20000809)83:8<1962::aid-hlca1962>3.0.co;2-8
• 作为产物：
  描述：

  5-(苄氧基甲基)尿嘧啶 、 四乙酰核糖 在 N,O-双三甲硅基乙酰胺 、 三氟甲磺酸三甲基硅酯 作用下， 以 乙腈 为溶剂， 反应 18.0h， 以74%的产率得到2',3',5'-tri-O-acetyl-5-[(benzyloxy)methyl]uridine
  参考文献：
  名称：

  Aromaticvs. Carbohydrate Residues in the Major Groove: Synthesis of 5-[(Benzyloxy)methyl]pyrimidine Nucleosides and Their Incorporation into Oligonucleotides

  摘要：

  The synthesis of 5-[(benzyloxy)methyl]-substituted pyrimidine 2'-deoxynucleosides 14 and 15 starting from the uracil derivative 6 and tetra-O-acetyl-D-ribose is described (Schemes 1-3). These nucleosides were converted to the corresponding cyanoethyl phosphoramidites 18 and 19, respectively, and incorporated into oligodeoxynucleotide decamers. The 5-[(benzyloxy)methyl]-nucleoside building blocks T-bo(d) and C-bom(d) (bo = benzyloxy, bom = (benzyloxy)methyl) - shape analogs of the naturally occurring glucosylated nucleosides 1 and 2 (see Fig. 1) - lead to weaker binding affinities of oligodeoxynucleotides pairing to DNA as well as RNA complements. The modification is more destabilizing in the case of T-bo(d) than C-bom(d). Analysis of the thermodynamics of duplex formation shows that T-bo(d) and C-bom(d), incorporation leads to a smaller entropy change in duplex formation that is, however, overcompensated by a less Favorable enthalpy term. Molecular-modeling studies suggest that the benzyl groups reside in the major groove which would explain the improved pairing entropy as a result of the exclusion of ordered H2O.

  DOI：

  10.1002/1522-2675(20000809)83:8<1962::aid-hlca1962>3.0.co;2-8