Z-Val-Val-Gly-OEt | 147424-39-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: Z-Val-Val-Gly-OEt
• 英文别名: Cbz-Val-Val-Gly-OEt；ethyl 2-[[(2S)-3-methyl-2-[[(2S)-3-methyl-2-(phenylmethoxycarbonylamino)butanoyl]amino]butanoyl]amino]acetate
• CAS: 147424-39-3
• 化学式: C₂₂H₃₃N₃O₆
• 分子量: 435.521
• InChiKey: IYJGRWPSCRYAAY-OALUTQOASA-N

物化性质

• 沸点：
  650.7±55.0 °C(predicted)
• 密度：
  1.138±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  31
• 可旋转键数：
  13
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  123
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  Z-Val-Val-Gly-OEt 在 palladium on activated charcoal N-甲基吗啉 、 氢气 、 N-甲基吗啉盐酸盐 、 1-羟基苯并三唑 、 N,N'-二环己基碳二亚胺 作用下， 以 溶剂黄146 、 N,N-二甲基甲酰胺 、 异丙醇 为溶剂， -10.0~25.0 ℃ 、101.33 kPa 条件下， 反应 30.0h， 生成 Boc-Tyr-D-Ala-Phe-Asp(OtBu)-Val-Val-Gly-OEt
  参考文献：
  名称：

  Unique sequence in deltorphin C confers structural requirement for δ opioid receptor selectivity

  摘要：

  A series of deltorphin C (H-Tyr-D-Ala-Phe-Asp-Val-Val-Gly-NH2) analogues were synthesized to assess the consequences of changing anionic and hydrophobic residues on delta receptor selectivity. Analogues with altered C-terminal groups, inverted sequences, or esterified with tert-butyl, benzyl, or ethyl groups revealed that high delta selectivity required an unmodified amino acid sequence. Shifts of Asp and hydrophobic residues decreased delta selectivity due to loss in delta affinity (5- to almost-equal-to 700-fold); mu affinity was unchanged or increased 14-fold. Suppression of charge or deamidation diminished delta selectivity through reduced delta and modified mu affinities. Data provide evidence that a negative charge does not a priori guarantee high selectivity and specific alignment of anionic and hydrophobic residues might facilitate optimum spatial configuration which complements the 8 receptor binding site.

  DOI：

  10.1016/0223-5234(92)90113-f
• 作为产物：
  描述：

  N-苄氧羰基-L-缬氨酸琥珀酰亚胺酯 在 palladium on activated charcoal 氢气 、 1-羟基苯并三唑 、 N,N-二异丙基乙胺 作用下， 以 溶剂黄146 、 N,N-二甲基甲酰胺 、 异丙醇 为溶剂， 25.0 ℃ 、101.33 kPa 条件下， 生成 Z-Val-Val-Gly-OEt
  参考文献：
  名称：

  Unique sequence in deltorphin C confers structural requirement for δ opioid receptor selectivity

  摘要：

  A series of deltorphin C (H-Tyr-D-Ala-Phe-Asp-Val-Val-Gly-NH2) analogues were synthesized to assess the consequences of changing anionic and hydrophobic residues on delta receptor selectivity. Analogues with altered C-terminal groups, inverted sequences, or esterified with tert-butyl, benzyl, or ethyl groups revealed that high delta selectivity required an unmodified amino acid sequence. Shifts of Asp and hydrophobic residues decreased delta selectivity due to loss in delta affinity (5- to almost-equal-to 700-fold); mu affinity was unchanged or increased 14-fold. Suppression of charge or deamidation diminished delta selectivity through reduced delta and modified mu affinities. Data provide evidence that a negative charge does not a priori guarantee high selectivity and specific alignment of anionic and hydrophobic residues might facilitate optimum spatial configuration which complements the 8 receptor binding site.

  DOI：

  10.1016/0223-5234(92)90113-f