| 130996-63-3

• 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
• CAS: 130996-63-3
• 化学式: C₃₂H₄₄N₈O₇
• 分子量: 652.751
• InChiKey: PEDZMJAEUNRDJN-UJRCAEAVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.54
• 重原子数：
  47.0
• 可旋转键数：
  15.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  227.27
• 氢给体数：
  8.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  、 (R)-2-methyl-4-nonanyl-(S)-histidinamide dihydrochloride 在 1-羟基苯并三唑一水物 、 三乙胺 、 N,N'-二环己基碳二亚胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 96.0h， 生成 2-{2-[2-[2-(2,2-Dimethyl-propionylamino)-3-(3H-imidazol-4-yl)-propionylamino]-3-(1H-indol-3-yl)-propionylamino]-propionylamino}-N-{[2-(3H-imidazol-4-yl)-1-(1-isobutyl-hexylcarbamoyl)-ethylcarbamoyl]-methyl}-3-methyl-butyramide
  参考文献：
  名称：

  Gastrin releasing peptide antagonists with improved potency and stability

  摘要：

  Gastrin releasing peptide (GRP) is a 27 amino acid peptide hormone which is homologous to the amphibian peptide bombesin. Two series of novel GRP antagonists were developed by C-terminal modification of N-acetyl-GRP-20-27 amide. Peptide derivatives within each series resist enzymatic degradation in serum and exhibit strong affinity for the GRP receptor. The first series of compounds replaces the Leu26-Met27 region of GRP with an alkyl ether moiety. One member of this series, N-acetyl-GRP-20-25-NH-[(S)-1-ethoxy-4-methyl-2-pentane], specifically blocked radiolabeled GRP binding with an IC50 of 6 nM. In the second series of antagonists the oxygen of the ether moiety is replaced with a methylene group, resulting in GRP antagonists which are equipotent to native GRP in receptor binding assays (IC50 = 2 nM) and are also resistant to proteolytic degradation in vitro. All of the C-terminally modified peptides tested blocked GRP-stimulated mitogenesis in Swiss 3T3 mouse fibroblasts. Representative compounds also blocked GRP-induced elevation of [Ca2+]i in human SCLC cells, and inhibited GRP-independent release of gastrin in vivo.

  DOI：

  10.1021/jm00111a027
• 作为产物：
  描述：

  N-叔丁氧羰基-L-色氨酸 在 盐酸 作用下， 生成
  参考文献：
  名称：

  Gastrin releasing peptide antagonists with improved potency and stability

  摘要：

  Gastrin releasing peptide (GRP) is a 27 amino acid peptide hormone which is homologous to the amphibian peptide bombesin. Two series of novel GRP antagonists were developed by C-terminal modification of N-acetyl-GRP-20-27 amide. Peptide derivatives within each series resist enzymatic degradation in serum and exhibit strong affinity for the GRP receptor. The first series of compounds replaces the Leu26-Met27 region of GRP with an alkyl ether moiety. One member of this series, N-acetyl-GRP-20-25-NH-[(S)-1-ethoxy-4-methyl-2-pentane], specifically blocked radiolabeled GRP binding with an IC50 of 6 nM. In the second series of antagonists the oxygen of the ether moiety is replaced with a methylene group, resulting in GRP antagonists which are equipotent to native GRP in receptor binding assays (IC50 = 2 nM) and are also resistant to proteolytic degradation in vitro. All of the C-terminally modified peptides tested blocked GRP-stimulated mitogenesis in Swiss 3T3 mouse fibroblasts. Representative compounds also blocked GRP-induced elevation of [Ca2+]i in human SCLC cells, and inhibited GRP-independent release of gastrin in vivo.

  DOI：

  10.1021/jm00111a027