Ethyl (2S,3E,5R)-2-phenyl-5-(phenylmethanamido)-3-hexenoate | 162735-09-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: Ethyl (2S,3E,5R)-2-phenyl-5-(phenylmethanamido)-3-hexenoate
• 英文别名: ethyl (E,2S,5R)-5-benzamido-2-phenylhex-3-enoate
• CAS: 162735-09-3
• 化学式: C₂₁H₂₃NO₃
• 分子量: 337.419
• InChiKey: SQBALSZHRZEMNV-PDQXNURJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  25
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  55.4
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  Ethyl (2S,3E,5R)-2-phenyl-5-(phenylmethanamido)-3-hexenoate 在 四氧化锇 sodium periodate 、 lithium aluminium tetrahydride 、 锂硼氢 、 四丁基碘化铵 、 sodium hydride 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 反应 26.17h， 生成 (2R)-3-(Benzyloxy)-2-phenyl-1-propanol
  参考文献：
  名称：

  SN2'-Reactions of Peptide Aziridines. A Cuprate-Based Approach to (E)-Alkene Isosteres

  摘要：

  Alkenylaziridines were prepared from allylic alcohols via Sharpless epoxidation; oxirane to aziridine conversion under modified Staudinger conditions, and Wittig chain extension. Alternatively, beta-hydroxy alpha-amino acids such as threonine can serve as readily available precursors. The corresponding N-acyl, -peptidyl-, -carbamoyl-, and -sulfonylaziridines underwent a high-yielding anti-S(N)2' alkylation with organocopper/BF3 complex to give (E)-alkene peptide isosteres in 62 to >98% de. The stereoselectivity of the addition process was studied by H-1 and F-19 NMR as well as chemical degradation. Alkene isosteres are important nonhydrolyzable and rigidified analogs of peptide bonds in biologically active peptides. This new methodology considerably facilitates the synthesis and the study of these peptide mimetics, since alkenylaziridines are readily prepared and side-chain modification is simplified by the wide range of functionalized organocopper reagents that are available.

  DOI：

  10.1021/jo00096a033
• 作为产物：
  描述：

  苯基锂 、 (3R)-N-Benzoyl-2-<(E)-2-(ethoxycarbonyl)ethenyl>-3-methylaziridine 生成 (4R,5R)-4-Methyl-5-<(E)-2-(ethoxycarbonyl)ethenyl>-2-phenyl-Δ²-oxazoline 、 Ethyl (3E,5R)-5-(phenylmethanamido)-3-hexenoate 、 Ethyl (2S,3E,5R)-2-phenyl-5-(phenylmethanamido)-3-hexenoate
  参考文献：
  名称：

  SN2'-Reactions of Peptide Aziridines. A Cuprate-Based Approach to (E)-Alkene Isosteres

  摘要：

  Alkenylaziridines were prepared from allylic alcohols via Sharpless epoxidation; oxirane to aziridine conversion under modified Staudinger conditions, and Wittig chain extension. Alternatively, beta-hydroxy alpha-amino acids such as threonine can serve as readily available precursors. The corresponding N-acyl, -peptidyl-, -carbamoyl-, and -sulfonylaziridines underwent a high-yielding anti-S(N)2' alkylation with organocopper/BF3 complex to give (E)-alkene peptide isosteres in 62 to >98% de. The stereoselectivity of the addition process was studied by H-1 and F-19 NMR as well as chemical degradation. Alkene isosteres are important nonhydrolyzable and rigidified analogs of peptide bonds in biologically active peptides. This new methodology considerably facilitates the synthesis and the study of these peptide mimetics, since alkenylaziridines are readily prepared and side-chain modification is simplified by the wide range of functionalized organocopper reagents that are available.

  DOI：

  10.1021/jo00096a033

文献信息

• SN2'-Reactions of Peptide Aziridines. A Cuprate-Based Approach to (E)-Alkene Isosteres
  作者：Peter Wipf、Paul C. Fritch

  DOI：10.1021/jo00096a033

  日期：1994.8

  Alkenylaziridines were prepared from allylic alcohols via Sharpless epoxidation; oxirane to aziridine conversion under modified Staudinger conditions, and Wittig chain extension. Alternatively, beta-hydroxy alpha-amino acids such as threonine can serve as readily available precursors. The corresponding N-acyl, -peptidyl-, -carbamoyl-, and -sulfonylaziridines underwent a high-yielding anti-S(N)2' alkylation with organocopper/BF3 complex to give (E)-alkene peptide isosteres in 62 to >98% de. The stereoselectivity of the addition process was studied by H-1 and F-19 NMR as well as chemical degradation. Alkene isosteres are important nonhydrolyzable and rigidified analogs of peptide bonds in biologically active peptides. This new methodology considerably facilitates the synthesis and the study of these peptide mimetics, since alkenylaziridines are readily prepared and side-chain modification is simplified by the wide range of functionalized organocopper reagents that are available.