Pent-4-enyl 2',3',5'-tri-O-benzoyl-β-D-erythro-pentofuranoside | 152279-04-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: Pent-4-enyl 2',3',5'-tri-O-benzoyl-β-D-erythro-pentofuranoside
• 英文别名: (pent-4-enyl) 2,3,5-tri-O-benzoyl-β-D-ribofuranoside；[(2R,3R,4R,5R)-3,4-dibenzoyloxy-5-pent-4-enoxyoxolan-2-yl]methyl benzoate
• CAS: 152279-04-4
• 化学式: C₃₁H₃₀O₈
• 分子量: 530.574
• InChiKey: FLWSIATXYDZOKY-ACXCVDCASA-N

物化性质

• 沸点：
  639.9±55.0 °C(predicted)
• 密度：
  1.26±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.2
• 重原子数：
  39
• 可旋转键数：
  15
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.26
• 拓扑面积：
  97.4
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  6-甲基腺素 、 Pent-4-enyl 2',3',5'-tri-O-benzoyl-β-D-erythro-pentofuranoside 在 N-碘代丁二酰亚胺 、 三氟甲磺酸 4 A molecular sieve 作用下， 以 乙腈 为溶剂， 反应 0.67h， 以65%的产率得到N6-methyl-2',3',5'-tri-O-benzoyladenosine
  参考文献：
  名称：

  Pentenyl ribosides: new reagents for purine nucleoside synthesis

  摘要：

  Protected pent-4-enyl ribosides and deoxyribosides were synthesized as reagents for the preparation of nucleosides and deoxynucleosides. Reaction of pent-4-enyl 2',3',5'-tri-O-benzoyl-D-erythro-pentofuranoside with five nucleobases in the presence of N-iodosuccinimide/trifluoromethanesulfonic acid (NIS/TfOH) produced the N-9-beta-nucleosides in 50-70% yields. Pent-4-enyl-2-deoxy-3',5'-di-O-p-toluyl-alpha-D-erythro-pentofuranoside coupled with 6-chloropurine in the presence of iodonium dicollidine perchlorate (IDCP) to produce a mixture of deoxynucleoside isomers (N-9, N-7, alpha,beta) in 91% yield. Under the same conditions, coupling of 6-chloropurine with pent-4-enyl 2'-deoxy-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)-D-erythro-pentofuranoside produced only N-9alpha and N-9beta products in 40% total yield. The N-9beta nucleoside was the only product of the reaction of 6-chloropurine with pent-4-enyl 2'-O-benzoyl-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)-D-erythro-pentofuranoside in the presence of NIS/TfOH. Pent-4-enyl ribosides appear to be useful reagents for the synthesis of ribo- and deoxyribonucleosides under mild (NIS/TfOH) or neutral (IDCP) conditions.

  DOI：

  10.1021/jo00077a057
• 作为产物：
  描述：

  α,β-1-甲基-D-呋喃核糖苷 在 2,6-二甲基吡啶 、 gold(III) chloride 、 氢溴酸 、 四丁基碘化铵 、 溶剂黄146 作用下， 以 吡啶 、 二氯甲烷 、 溶剂黄146 为溶剂， 反应 18.17h， 生成 Pent-4-enyl 2',3',5'-tri-O-benzoyl-β-D-erythro-pentofuranoside
  参考文献：
  名称：

  Gold(III)-Catalyzed Glycosidations for 1,2-trans and 1,2-cis Furanosides

  摘要：

  Stereoselective synthesis of furanosides is still a daunting task, unlike the pyranosides, for which several methods exist. Herein, a unified stereoselective strategy for the synthesis of 1,2-trans and 1,2-cis furanosides is revealed for seven out of eight possible isomers of pentoses. The identified protocol gives access to diastereoselective synthesis of α- and β-araf, ribf, lyxf, and α-xylf furanosides. 1,2-trans glycosides were synthesized by the use of propargyl 1,2-orthoesters under gold-catalyzed glycosidation conditions, and subsequently, they are converted into 1,2-cis glycosides through oxidation-reduction as the key functional group transformation. All the reactions are found to be fully diastereoselective, mild, and high yielding.

  DOI：

  10.1021/jo501052y

文献信息

• Gold(III)-Catalyzed Glycosidations for 1,2-<i>trans</i> and 1,2-<i>cis</i> Furanosides
  作者：Shivaji A. Thadke、Bijoyananda Mishra、Srinivas Hotha

  DOI：10.1021/jo501052y

  日期：2014.8.15

  Stereoselective synthesis of furanosides is still a daunting task, unlike the pyranosides, for which several methods exist. Herein, a unified stereoselective strategy for the synthesis of 1,2-trans and 1,2-cis furanosides is revealed for seven out of eight possible isomers of pentoses. The identified protocol gives access to diastereoselective synthesis of α- and β-araf, ribf, lyxf, and α-xylf furanosides. 1,2-trans glycosides were synthesized by the use of propargyl 1,2-orthoesters under gold-catalyzed glycosidation conditions, and subsequently, they are converted into 1,2-cis glycosides through oxidation-reduction as the key functional group transformation. All the reactions are found to be fully diastereoselective, mild, and high yielding.
• Pentenyl ribosides: new reagents for purine nucleoside synthesis
  作者：Marie Christine Chapeau、Lawrence J. Marnett

  DOI：10.1021/jo00077a057

  日期：1993.12

  Protected pent-4-enyl ribosides and deoxyribosides were synthesized as reagents for the preparation of nucleosides and deoxynucleosides. Reaction of pent-4-enyl 2',3',5'-tri-O-benzoyl-D-erythro-pentofuranoside with five nucleobases in the presence of N-iodosuccinimide/trifluoromethanesulfonic acid (NIS/TfOH) produced the N-9-beta-nucleosides in 50-70% yields. Pent-4-enyl-2-deoxy-3',5'-di-O-p-toluyl-alpha-D-erythro-pentofuranoside coupled with 6-chloropurine in the presence of iodonium dicollidine perchlorate (IDCP) to produce a mixture of deoxynucleoside isomers (N-9, N-7, alpha,beta) in 91% yield. Under the same conditions, coupling of 6-chloropurine with pent-4-enyl 2'-deoxy-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)-D-erythro-pentofuranoside produced only N-9alpha and N-9beta products in 40% total yield. The N-9beta nucleoside was the only product of the reaction of 6-chloropurine with pent-4-enyl 2'-O-benzoyl-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)-D-erythro-pentofuranoside in the presence of NIS/TfOH. Pent-4-enyl ribosides appear to be useful reagents for the synthesis of ribo- and deoxyribonucleosides under mild (NIS/TfOH) or neutral (IDCP) conditions.