(3,4-dichlorohydrocinnamoyl)-L-phenylalanyl-D,L-homocysteine

• 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: (3,4-dichlorohydrocinnamoyl)-L-phenylalanyl-D,L-homocysteine
• 英文别名: 2-{(S)-2-[3-(3,4-Dichloro-phenyl)-propionylamino]-3-phenyl-propionylamino}-4-mercapto-butyric acid；2-[[(2S)-2-[3-(3,4-dichlorophenyl)propanoylamino]-3-phenylpropanoyl]amino]-4-sulfanylbutanoic acid
• 化学式: C₂₂H₂₄Cl₂N₂O₄S
• 分子量: 483.416
• InChiKey: ILWZFGFMSAPPGG-GGYWPGCISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  31
• 可旋转键数：
  11
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  96.5
• 氢给体数：
  4
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  3-(3,4-二氯苯基)丙酸 在 sodium hydroxide 、 1-羟基苯并三唑 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、 三乙胺 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 6.0h， 生成 (3,4-dichlorohydrocinnamoyl)-L-phenylalanyl-D,L-homocysteine
  参考文献：
  名称：

  Inhibition of Peptidylglycine .alpha.-Amidating Monooxygenase by N-Substituted Homocysteine Analogs

  摘要：

  C-terminal amidation is a posttranslational modification found in many neuropeptides. Peptidylglycine cl-amidating monooxygenase (PAM) catalyzes the synthesis of the biologically essential C-terminal amide from a glycine-extended precursor peptide. Reported herein are the first potent inhibitors of PAM. Dipeptides containing a C-terminal homocysteine and an N-acylated hydrophobic amino acid were found to inhibit PAM with IC(50)s in the low nanomolar range. Inhibition potency was dependent on both the carboxylate and the thiolate functionalities of the homocysteine and on the hydrophobic groups of the second amino acid. The thiolate was postulated to produce high binding affinities through coordination with the active-site copper. The compound series also exhibited potent inhibition of PAM in rat dorsal root ganglion cells as demonstrated by a dose-dependent increase in the substance P-Gly/substance P ratio. These results indicate that the compounds have sufficient potency and intracellular bioavailability to aid future studies focused on neuropeptide function and the contributions of neuropeptides to various disease processes.

  DOI：

  10.1021/jm00052a002

文献信息

• Inhibition of Peptidylglycine .alpha.-Amidating Monooxygenase by N-Substituted Homocysteine Analogs
  作者：Mark D. Erion、Jenny Tan、Mary Wong、Arco Y. Jeng

  DOI：10.1021/jm00052a002

  日期：1994.12

  C-terminal amidation is a posttranslational modification found in many neuropeptides. Peptidylglycine cl-amidating monooxygenase (PAM) catalyzes the synthesis of the biologically essential C-terminal amide from a glycine-extended precursor peptide. Reported herein are the first potent inhibitors of PAM. Dipeptides containing a C-terminal homocysteine and an N-acylated hydrophobic amino acid were found to inhibit PAM with IC(50)s in the low nanomolar range. Inhibition potency was dependent on both the carboxylate and the thiolate functionalities of the homocysteine and on the hydrophobic groups of the second amino acid. The thiolate was postulated to produce high binding affinities through coordination with the active-site copper. The compound series also exhibited potent inhibition of PAM in rat dorsal root ganglion cells as demonstrated by a dose-dependent increase in the substance P-Gly/substance P ratio. These results indicate that the compounds have sufficient potency and intracellular bioavailability to aid future studies focused on neuropeptide function and the contributions of neuropeptides to various disease processes.