Z-Asp(OtBu)-Val-Val-Gly-OEt | 147424-48-4

• 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-Asp(OtBu)-Val-Val-Gly-OEt
• 英文别名: Cbz-Asp(OtBu)-Val-Val-Gly-OEt；tert-butyl (3S)-4-[[(2S)-1-[[(2S)-1-[(2-ethoxy-2-oxoethyl)amino]-3-methyl-1-oxobutan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-4-oxo-3-(phenylmethoxycarbonylamino)butanoate
• CAS: 147424-48-4
• 化学式: C₃₀H₄₆N₄O₉
• 分子量: 606.717
• InChiKey: URDPPHYTDKGOPF-TUSQITKMSA-N

物化性质

• 沸点：
  826.8±65.0 °C(predicted)
• 密度：
  1.156±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  43
• 可旋转键数：
  19
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  178
• 氢给体数：
  4
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  Z-Asp(OtBu)-Val-Val-Gly-OEt 在 palladium on activated charcoal N-甲基吗啉 、 氢气 、 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， 25.0 ℃ 、101.33 kPa 条件下， 反应 26.0h， 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-天门冬氨酸 4-叔丁酯 在 N-甲基吗啉 、 N-甲基吗啉盐酸盐 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 4.05h， 生成 Z-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